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Production of Photon Processors Expected in 2006

ThinSkin writes "Photon processors that transmit data via light, not electrons, are slated to enter production in mid-2006, ExtremeTech reports. Headed by a UCLA professor and a Nobel Prize winner, startup Luxtera claims that its optical modulator clocks in at 10-GHz, tens times that of Intel's optical modulator researchers talked about last year. Since the optical module exists as its own entity, it will require a standard CMOS processes to integrate the optical waveguides. Luxtera has worked closely with Freescale Semiconductor to develop this technology."

217 comments

  1. Error In The Article by the_mad_poster · · Score: 4, Funny

    Electrons ARE light particles.

    --
    Alito: A vote for Alito is a punch in the eye to put that bitch back in her place!
    1. Re:Error In The Article by Anonymous Coward · · Score: 5, Informative

      Actually, you're wrong--electrons are particles of mass. They travel in waves, just like electromagnetic radiation (that is, light), and have a distinct De Broglie wavelength, but they are not, themselves, electromagnetic radiation.

    2. Re:Error In The Article by Anonymous Coward · · Score: 5, Funny

      The only thing I know about duality is that I'll be seeing this article again tomorrow.

    3. Re:Error In The Article by Anonymous Coward · · Score: 1, Informative
    4. Re:Error In The Article by Anonymous Coward · · Score: 0

      Also, photons are not light particles.

      It makes no sense to describe them as 'light' or 'heavy' since they have no mass.

    5. Re:Error In The Article by Anonymous Coward · · Score: 0

      It's a joke, son.

      Electrons are certainly not -heavy- particles.

    6. Re:Error In The Article by PxM · · Score: 1, Troll

      I think you meant to say electricty is light. This is somewhat right but not exactly. Light /is/ made up of electromagnetic fields and the electric force between charges /is/ transmitted by photons, but they are two seperate ideas. Modern quantum physics has electricity sent via virtual photons while normal light is sent by real photons. Real photons involve both an electric field and a magnetic field perpendicular to each other and perpendicular to the direction of the wave propogation. The reason fiber optics transmissions are "faster" is because we can send multiple signals on different wavelengths over the same line without them interfering with each other two much. We can't do this with normal electric signals because high frequency electric signals start acting strangly since metal wires can no longer be though as resistors but now have to be modeled as inductors too.

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    7. Re:Error In The Article by TummyX · · Score: 4, Funny

      Yes, but they are light. Certainly lighter than protons which are themselves light.

    8. Re:Error In The Article by XeroPurpose · · Score: 1, Funny

      Magic. Got it.

    9. Re:Error In The Article by SMitra72 · · Score: 1

      Thats incorrect: Photons are light. Electrons emit photons when changing states.

    10. Re:Error In The Article by Infinite+Entropy · · Score: 1

      Indeed, they are roughly about 1/2000th the mass of a proton.

    11. Re:Error In The Article by Anonymous Coward · · Score: 0

      Umm, yes. Pure energy.

      If you could get a photon to stop moving at the speed of light, it might have mass, but they always travel at the speed of light - and thus, cannot have mass.

    12. Re:Error In The Article by Pla123 · · Score: 2, Informative

      I think you mistake protons with photons.

      Photons are light. Protons are not.

      A Proton is a neutron with a positron.
      Electrons, positrons, protons, and neutrons are particles with mass and they are not light.

      When electrons or positrons move (current) they produce electro magnectic waves which are light.

      What they develop is the ability of devices like CPU and memory to comunicate using light and thus giving them more bandwidth.

      It's a small step toward faster computing and eventualy quantum computing...

    13. Re:Error In The Article by Anonymous Coward · · Score: 0

      Actually, I think the OP meant that electrons are not very heavy.

    14. Re:Error In The Article by Anonymous Coward · · Score: 0

      But they're not very heavy, are they? That's all he meant.

    15. Re:Error In The Article by Mr.+Underbridge · · Score: 1, Funny
      Actually, you're wrong--electrons are particles of mass. They travel in waves, just like electromagnetic radiation (that is, light), and have a distinct De Broglie wavelength, but they are not, themselves, electromagnetic radiation.

      Damn, I bet you're fun at parties.

    16. Re:Error In The Article by alpha_foobar · · Score: 1

      Did you stop to think why they were modded funny?

      Light... as a feather... not as a light/torch/beam of...

      sheesh. sure, they're not that funny... but hello!

    17. Re:Error In The Article by BeBoxer · · Score: 2, Informative

      Electrons, positrons, protons, and neutrons are particles with mass and they are not light.

      So they are what, heavy? It's a joke. Perhaps a little too subtle, but a joke none the less. Laugh. ;-)

    18. Re:Error In The Article by Feyr · · Score: 1

      i think the parent meant "light" as in "not heavy"

      a failed joke, don't ask for too much out of it

    19. Re:Error In The Article by rob_squared · · Score: 1

      I don't know why, but I always take great enjoyment when someone COMPLETELY MISSES a joke.

      --
      I don't get it.
    20. Re:Error In The Article by Anonymous Coward · · Score: 0

      Electrons aren't light particles, and don't travel as fast as light. However, in a strange turn of events, electricy actually does travel at roughly the speed of light. This is possible because the MASS of the electron is not moving at C, but the motion is. For a quick reading, see http://www.jimloy.com/physics/electric.htm

    21. Re:Error In The Article by Marran+Gray · · Score: 1

      Heh, you see that blue glow? That's the Cerenkov radiation from the punchline flying over your head just a little faster than c/n.

      --
      "There are hundreds of game theorists at the gates, sir, and they want to hold an election!"
    22. Re:Error In The Article by Marran+Gray · · Score: 1

      Oops, that should have been a reply to Pla123's comment, not BeBoxer's. I really shouldn't be posting when I'm so tired.

      --
      "There are hundreds of game theorists at the gates, sir, and they want to hold an election!"
    23. Re:Error In The Article by Rakishi · · Score: 2, Informative

      Photons have no mass since moving at the speed of light requires no mass. They do have momentum but that is not how they cut metal. They have a lot of energy which is how they cut metal. It's really quite simple, lots of heat causes metal to melt thus a laser can cut metal by applying a lot of energy (which gets absorbed and transformed into heat) to the metal in a small area.

    24. Re:Error In The Article by novakyu · · Score: 3, Informative
      ... There's the saying, "Don't feed the trolls," but since this is marked "Informative", I should correct it on a few points:

      A Proton is a neutron with a positron.

      No, it's not. A proton is three quarks. From Wikipedia:
      Protons are classified as baryons and are composed of two Up quarks and one Down quark, which are also held together by the strong nuclear force, mediated by gluons. The proton's antimatter equivalent is the antiproton, which has the same magnitude charge as the proton but the opposite sign.

      A neutron may decay into a proton+electron pair, but a proton is most definitely not composed of neutron+something else. If nothing else, this should be the proof: neutron is heavier than proton---by conservation of mass and energy, neutron cannot be a component of proton.

      When electrons or positrons move (current) they produce electro magnectic waves which are light.

      No, it's not when they move that they produce EM waves. It's when they accelerate that it does (if you had been a physicist, this difference would have been carved into your very being). Moving charge only creates a magnetic field, which doesn't necessarily propagate as an oscillating field in space (i.e. EM wave). What you need is not a current but an alternating (as one example) current.

      It's a small step toward faster computing and eventualy quantum computing...

      Er... I know that you don't know what you are talking about, but this has nothing to do with quantum computing. (O.K. I haven't RTFM (nor do I have interest or time to do so), so I may be wrong on this, but...) This development is analogous to moving to fiber optics from copper cables---it does use a less "lossy" and perhaps faster medium, but it is in no way related to quantum computing.

    25. Re:Error In The Article by Redmega · · Score: 1

      I think the quantum confusion may have come from the famous wave/particle duality experiment involving the two 45 degree mirrors - I forget who did it. Although how you shrink mirrors to this scale and embed them on a substrate, I'm not so sure.

    26. Re:Error In The Article by maxwell+demon · · Score: 2, Informative
      While most of what you say is correct, the following is wrong:
      If nothing else, this should be the proof: neutron is heavier than proton---by conservation of mass and energy, neutron cannot be a component of proton.

      The nucleus of every atom (except for hydrogen, obviously) is smaller than the sum of the masses of its nucleons. If your proof were valid, then they couldn't consist of the nucleons they consist of. The point is that the binding energy also contributes to the mass, and since the binding energy is negative (the bound state has less energy than the unbound state), this means it reduces the mass.

      No, the ultimate proof that a neutron is not part of the proton are accelerator experiments which agree with the established theories where the proton is not a neutron with a positron.
      --
      The Tao of math: The numbers you can count are not the real numbers.
    27. Re:Error In The Article by nizo · · Score: 1

      You forgot to include several lines explaining that you were joking, and by light you meant "light as in not heavy". All good comedians take ten minutes to explain every joke don't they?

    28. Re:Error In The Article by Anonymous Coward · · Score: 0

      > We can't do this with normal electric signals because high frequency electric signals start acting strangly since metal wires can no longer be though as resistors but now have to be modeled as inductors too.

      Just in case you weren't trolling, but I'm probably wasting my time...
      We can. It's called broadband. Look up frequency division multiplexing.

    29. Re:Error In The Article by Anonymous Coward · · Score: 0

      No, the ultimate proof that a neutron is not part of the proton are accelerator experiments which agree with the established theories where the proton is not a neutron with a positron.

      An easier way to show this (though arguably less conclusive) is to consider the spin statistics of nitrogen-14.

    30. Re:Error In The Article by SagaLore · · Score: 0
      Yes, but they are light. Certainly lighter than protons which are themselves light.


      Really? So if you remove the phosphor coated screen from your monitor, it will light up the room?

      You sound so sure of yourself. :P
    31. Re:Error In The Article by frankenbox · · Score: 1

      Who cares, you can only go as fast as the slowest ship in the convoy right? Still be a bottleneck with the hard drive. SCSI, SATA. etc. May want to center storage in a flash form like a super thumb drive if'n yall git my meaning. What is happening is really exciting. The next ten years will be enlightining. Of course "they" said that 10 years ago. Love my 486..... Problem is getting all that love to be availible. "I'm sorry Dave, I can't do that..."

    32. Re:Error In The Article by novakyu · · Score: 1
      I think the quantum confusion may have come from the famous wave/particle duality experiment involving the two 45 degree mirrors - I forget who did it. Although how you shrink mirrors to this scale and embed them on a substrate, I'm not so sure.

      IIRC, this is Michelson-Morley experiment which provided the motivation for the theory of special relativity (and experimental evidence of absence of ether). Unless there is another experiment that I don't know, this experiment isn't related to quantum mechanics.

  2. How long until... by Anonymous Coward · · Score: 3, Funny
    people start talking about the GHz Myth?

    My photons are faster than yours!

    1. Re:How long until... by Anonymous Coward · · Score: 0

      Well, they could be right. Different wavelengths travel at different speeds, however slightly different they are.

    2. Re:How long until... by Rei · · Score: 5, Interesting

      Well, it is a multiplier, even if it's not the only factor...

      Of course, it just amazes me to think about. With a main clock cycle of 10 billion cycles per second, there would actually be fractional cycles going on at hundreds of billions of cycles per second. The number is staggering; a couple hundred billion times the width of the outer layer of your skin would reach to the moon. The photons will travel through hundreds of thousands of hand-designed gates at the tiniest of scales.

      And, of course, the most common usage for this marvel of modern engineering will be to provide better lighting effects in video games. :P

      --
      I once listened to a Philip Glass record for an hour and a half before I realized it was skipping.
    3. Re:How long until... by ciroknight · · Score: 5, Insightful

      No offense, but we're more likely to see this kind of technology being used to make movies before video games. Hear me out.

      When newer processor technologies are developed, they're almost always deligated to server processors before they trickle down to desktop processors. (Of course, there are exceptions: MMX and its spawn, etc).
      br. I can't wait to see Pixar pick up the Apple Xserves based on an optical interconnected chip. The movies they'd makewould only get more spectacular.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    4. Re:How long until... by bob_herzog · · Score: 1

      Well, at least its appropriate that photons will provide the lighting effects.

      --
      "I'll waste 'em with my crossbow!" ~Bob Herzog, Power Gamer
    5. Re:How long until... by peculiarmethod · · Score: 1

      "I can't wait to see Pixar pick up the Apple Xserves based on an optical interconnected chip. The movies they'd makewould only get more spectacular."

      most likely they'll be used by the younger graphic artists in order to obtain [(fp!)at the speed of l16][t, beeoztches].

      shame, but it's true.

      --
      ** "It's not my job to stand between the people talking to me, and the ones listening to me." -- Pego the Jerk
    6. Re:How long until... by one_get_one_free · · Score: 1, Insightful

      ..And downloading porn a million times faster. Don't forget that.

    7. Re:How long until... by jafomatic · · Score: 2, Insightful
      No offense, but I'd rather we leverage this kinda thing in the pursuit of curing fucking diseases before we make the videogames.

      ...or the movies, whichever. Probably the movies first, since they don't need to render in real-time.

      --
      ::jafomatic
    8. Re:How long until... by Anonymous Coward · · Score: 1, Funny

      Exactly. The first people to adopt new technologies always work in the "movie" business. By "movie" I mean "porn." Alright, so get to work and make it so I can render in real-time a sex scene between Jenna and myself!

    9. Re:How long until... by Aeiri · · Score: 1

      most likely they'll be used by the younger graphic artists in order to obtain [(fp!)at the speed of l16][t, beeoztches].

      What, do you think it takes over 7 GHz to load a page on a website? The only restraint is BANDWIDTH, which with fiber optics already use light.

    10. Re:How long until... by PapayaSF · · Score: 2, Funny

      What, do you think it takes over 7 GHz to load a page on a website?

      Safe prediction: by the time we're using photon processors, yes, it will take 7 gHz to load a website....

      --
      Q: What does the "B." in Benoit B. Mandelbrot stand for? A: Benoit B. Mandelbrot
    11. Re:How long until... by danila · · Score: 2, Interesting

      There doesn't seem to be anything technologically spectacular about Pixar movies these days. Toy Story was impressive. Finding Nemo was impressive. But Incredibles and Robots are generic 3D animation (with supposedly excellent stories, characters, etc.). Pixar is not a 3D graphics pioneer and the only thing Apple Xserves will do is drive the costs down (or up) a bit. Graphically it will all look the same.

      I am much more impressed with Kaena, Immortel, Sky Captain, Advent Children and the like. Pixar is passe, it's just that most people haven't caught up with the fact.

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    12. Re:How long until... by danila · · Score: 1

      I guess you haven't seen the 3dfx ads? "You could use the technology to save lives.... or play games".

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    13. Re:How long until... by Anonymous Coward · · Score: 0
      My photons are faster than yours!

      Sounds like photon envy to me.

    14. Re:How long until... by jcr · · Score: 1

      Pixar is not a 3D graphics pioneer

      You're kidding, right? Do you know how many movies from other studios are rendered with Pixar's RenderMan?

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    15. Re:How long until... by danila · · Score: 1

      I should have made myself clearer. Definitely, Pixar was a pioneer in 3D animation a decade ago. And clearly, it still makes a lot of process innovationss that improve the rendering technology, management and storage of art assets, etc. It's just that the visual quality (i.e. realism and special effects) of its animated films is nothing special, compare with other studios.

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    16. Re:How long until... by jcr · · Score: 1

      Ok, now I know you have no idea what you're talking about. Take a close look at Violet's hair in the Incredibles. Then, look at the ocean surfaces in Finding Nemo. While you're at it, check out the fur on Sully in Monsters, Inc.

      Ever wonder why we never see the princess's hair loose in Shrek? It's because Pacific Data Images doesn't know how to do that.

      Pixar has been way ahead of the field from its inception, and it's still leading the pack.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    17. Re:How long until... by famebait · · Score: 1

      Of course, there are exceptions: MMX and its span, etc.

      Ever hear about GPUs?

      --
      sudo ergo sum
    18. Re:How long until... by danila · · Score: 1

      OK, you are the second person to tell me about Violet's hair today... I know that Pixar makes a big point of having developed an ultra-cool hair technology, but IMHO it's mostly just PR. The technology s certainly nice, but overall relatively unimportant (just as Sully's fur was). From a technological point of view the amazing Polar Express is much more advanced (the performance capture, the realistic humans, the IMAX release).

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    19. Re:How long until... by danila · · Score: 1

      Check how the realistic hair was done in the Matrix Revolutions, for example.

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    20. Re:How long until... by mattyrobinson69 · · Score: 1

      Well im hoping it'l go the other way - by the time we're using 7ghz processors people will *stop* using tables for layout, flash for adverts and buttons, shockwave for adverts and buttons.

      Blackcomb (longhorns sucessor) will need more than 7ghz, but maybe microsoft will have a working css implementation by then.

      We can only hope.

    21. Re:How long until... by mattyrobinson69 · · Score: 1

      This technology would more likely be applied in pulling the porn from RAM to the GPU faster.

    22. Re:How long until... by jcr · · Score: 1

      IIRC, Matrix revolutions was rendered with Renderman. As for the modelling they did, consider both the difference between short and long hair, as well as the difference between doing something for the first time, and doing it a few years after Pixar has published SIGGRAPH papers on the subject.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    23. Re:How long until... by danila · · Score: 1

      Not exactly. It's not Pixar that did it, it's a particular researcher. I am not saying that Pixar doesn't have brilliant computer graphics scientists and programmers - they certainly have. I am just saying that currently Pixar doesn't appear to concentrate on technological innovations.

      They are a animation studio, so that might not be a bad thing. But if you are looking for breakthroughs in CGI, it might not make sense to look at Pixar.

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    24. Re:How long until... by ciroknight · · Score: 1

      I would too, but the fact is, we don't have the computational power to cure diseases, and protein folding has yet to provide anything useful. But, if you want to spend multiple hundreds of thousands of dollars on machines that will take literally a year to produce any result at all (whether or not it would be valid could easily take another two or three years to confirm), go right on ahead.

      Fact: protein folding is best implemented via grid computing. That way, as newer techonologies come available, you can online entire new processors without loosing time. Stopping and upgrading to a faster cluster is a waste of time and money.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    25. Re:How long until... by ciroknight · · Score: 1

      Alright, fair enough. The reason I would say Apple xServes is because they're most likely the next computer to get said technology (Freescale's a PPC shop, could easily see them licensing the technology to IBM to use in the G*, which would go to an Apple machine before it would arrive in any other machine). The reason I said Pixar is because they're the most likely to buy Apple hardware.

      It is your opinion that Pixar is passe, but you must realize that development on the films you mentioned (The Incredibles, Robots [which isn't even a Pixar film]) started years ago. The Incredibles was incredible (hah) because of it's textures; did you see the almost perfect metals, glasslike and shiny (looked raytraced), and the water surfaces. Tie that in with human characters (something that once again hadn't happened in animation sans Final Fantasy), and you get a fun, believeable story. Just because you are more impressed with Advent Children and Sky Captain and the World of Tomorrow, doesn't mean that everyone is (take a good look at the grossing of the films if you want to see a good example).

      Alright, Ima wind down this rant. Just because it doesn't seem like Pixar is innovating, they are really an industry force, taking the bottom up approach (starting with animation, going to film) of computer animation instead of the top down (starting with film and making it animated, and then putting it back on film). I can't wait to see more movies using the lighting systems like in Robots and The Incredibles..

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    26. Re:How long until... by ciroknight · · Score: 1

      That particular researcher works for Pixar, making it Pixar's work. ;)

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    27. Re:How long until... by danila · · Score: 1

      I saw totally perfect metals in 2002, in DVD extras to Two Towers. There was a video of two sets of armour, side by side. One was 100% CGI, another was 100% real. They were indistinguishable. And I stopped being impressed with technological aspects of water surfaces after I saw The Perfect Storm and The Day After Tomorrow.

      I am not trying to bash Pixar or claim that they don't make good stories (they do) and successful films (though that doesn't mean that Incredibles was better than Immortel: Ad Vitam). I am just saying that they are no longer technology driven, and because of that, even if you give them some uber-computer cluster, the visual quality of the films will not really improve much.

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
  3. Uh, okay by Anonymous Coward · · Score: 4, Insightful

    And who gets to use these? Are these like only special coprocessors for million-dollar supercomputers? Are they going to be x86-compatible? MIPS compatible? What?

    1. Re:Uh, okay by TopSpin · · Score: 5, Informative

      And who gets to use these?

      Whoever can afford them.

      Are these like only special coprocessors for million-dollar supercomputers?

      No. These are not "processors" of any sort. It is a new way to modulate signal between CMOS and optical at high frequency and small scale. It may provide faster bus speeds, assuming the reality matches the funding hype.

      Are they going to be x86-compatible? MIPS compatible? What?

      It will be "compatible" with any CMOS device that needs a bus to communicate with some other device. Since that includes all useful CMOS devices, it will be compatible with everything!

      --
      Lurking at the bottom of the gravity well, getting old
    2. Re:Uh, okay by PxM · · Score: 2, Informative

      These aren't processors. They're more like modems. They convert the optical signal into electrons and let a normal electronic CMOS CPU proccess the data. The article is about the fact that this modulator can be done on the same chip as the processor and is ten times as fast as the next best thing.

      --
      Want a free iPod?
      Or try a free Nintendo DS, GC, PS2, Xbox. (you only need 4 referrals)
      Wired article as proof

    3. Re:Uh, okay by ewhac · · Score: 1
      Are they going to be x86-compatible? MIPS compatible? What?

      Since it's Freescale (née Motorola) that's mentioned in the article, any general-purpose CPU appearing from this effort will probably be ARM-based. However, the most likely application will be specialized processors for multi-gigabit network routers.

      Schwab

    4. Re:Uh, okay by Anonymous Coward · · Score: 0

      They will most likely be Cell Processors. They give you the most bang-for-your-buck, and can actually take advantage of the high memory bandwidth this would offer. It'd be a waste to use this technology on single-threaded CPU's.

    5. Re:Uh, okay by BitchKapoor · · Score: 2, Informative
      Since it's Freescale (née Motorola) that's mentioned in the article, any general-purpose CPU appearing from this effort will probably be ARM-based. However, the most likely application will be specialized processors for multi-gigabit network routers.

      Really? I wasn't aware that Freescale made ARM processors, too. After all, when it comes to microprocessors, they're primarily known for 68k and PowerPC.

    6. Re:Uh, okay by constantnormal · · Score: 1

      Let's try...

      Routers -- Freescale does a significant amount of business [disclaimer]I believe[/disclaimer] supplying embedded PPC processors to the communications industry. Stuff like this helps to make optical fiber connection cheaper and faster. The Freescale involvement means that the photonic-to-electronic chips get a cost-effective integration with the electronic logic in the router.

      Maybe eventually, we'll see direct fiber communications connecting to our home PCs, at commodity prices, through special purpose chips similar to those supporting the ethernet jacks we use today. If that is ever to happen, stuff like this needs to happen.

  4. buzzword of this article by Prophetic_Truth · · Score: 2

    10ghz

    --
    time is a perception of a being's consciousness
    time is your 6th sense, the wierd ones are 7+
    1. Re:buzzword of this article by ciroknight · · Score: 1

      Indeed. I don't think they offer a shred of evidence to back up their 10GHz claim either. Which is sad, because if they've got processes 10x faster than Intel, it's saying something about Intel's R&D into this particular sector. Of course, it says nothing at all if they have no proof.

      Truthfully, I'd love to see optical processor technology, but I don't think we're ready. But if this company can provide, then I will consume :-)

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    2. Re:buzzword of this article by Decimal+Dave · · Score: 1

      Don't you mean buzznumber?

      --

      "Leave the strategizing to those of us with planet-sized brains." -Tycho
    3. Re:buzzword of this article by Marran+Gray · · Score: 1

      On my computer, integers are encoded as four-byte words. YMMV; consult sizeof(int) for current information.

      --
      "There are hundreds of game theorists at the gates, sir, and they want to hold an election!"
    4. Re:buzzword of this article by Anonymous Coward · · Score: 0

      I wonder if it will take "10 JigaWatts of electricity!"

      *ducks*

  5. Whose bright idea was it... by Anonymous Coward · · Score: 2, Funny

    to use light for your processor.

    Imagine Intel chips with this technology. Now instead of heating your whole room - you have an extremely bright night light. "Sleep" or "hibernate" will have a new meaning when you use it to turn off the main light in your room.

    1. Re:Whose bright idea was it... by TheKidWho · · Score: 1

      And this research will lead to FTL travel because the damned photons won't go faster then c!!

    2. Re:Whose bright idea was it... by Anonymous Coward · · Score: 0

      All this processing power, and still no one knows the difference between THEN and THAN. Learn it, bitch.

    3. Re:Whose bright idea was it... by wed128 · · Score: 1

      hmmm...that would suck for those of us who like hacking in the dark...

    4. Re:Whose bright idea was it... by Anonymous Coward · · Score: 1, Funny

      Soooo... now all we need are chips using different wavelengths and then we could reintroduce the Spectrum. Maybe the Color Computer?

    5. Re:Whose bright idea was it... by hombredakwk · · Score: 1

      This isn't new, I had a Radio Shack Color Computer II years ago.

  6. Backfire on Intel? by Anonymous Coward · · Score: 0

    Now that they have pushed how important Mhz is, will the release of this processor have people buying it up instead?

    My thoughts are that it won't matter since the average consumer recognizes the Intel name and have no idea who (*gasp*) AMD or Luxtera are.

    1. Re:Backfire on Intel? by Anonymous Coward · · Score: 0

      I think you give the "average consumer" far too much credit. Most of them have no clue what CPU they have or even how much hard drive space they have.

  7. Not a "Processor" by TopSpin · · Score: 5, Insightful

    It's high bandwidth (10Gbit/sec) small scale (130nm) modulation from CMOS to optical. This is not "processing" in the sense of optical logic.

    --
    Lurking at the bottom of the gravity well, getting old
    1. Re:Not a "Processor" by Anonymous Coward · · Score: 0

      Mod parent up. This isn't about microprocessors.

    2. Re:Not a "Processor" by ciroknight · · Score: 1

      So it's a processor bus? Makes more sense, but I'd really like to see the proof from this little startup company.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    3. Re:Not a "Processor" by Anonymous Coward · · Score: 0

      ARG! Data rate, not bandwidth! Bandwidth is the range of frequencies a channel operates over, and is but one component of the overall data rate (bits / second)

  8. Woo Hoo! by Anonymous Coward · · Score: 0

    I see the light!

    1. Re:Woo Hoo! by Anonymous Coward · · Score: 0

      I'm afraid in this case that means that your computer has sprung a leak.

  9. Bah by Anonymous Coward · · Score: 5, Funny

    They'll just release the exact same chip as this guy in a year, only call it "Pentium 4 with photon extensions" and pretend they invented it.

  10. 10Ghz? by DrKyle · · Score: 4, Interesting

    At first, I thought "Wow! That's like blazing fast speed!" And then I thought "Well, that sure beats having a couple PS3 cell processors hooked up together" And then i read the article... and was promptly disappointed. The 10GHz speed is how fast it can turn electrons into photons, but the chip is still primarily electron-based, so what is the real performance gain? They don't tell you because it probably isn't any yet.

    1. Re:10Ghz? by Anonymous Coward · · Score: 2, Informative

      Blehh.... you're not making sense.

      The performance gain is up to the chip designers, who will design a chip as fast as they can. That wasn't the problem they were trying to solve.

      Rather, the problem this addresses is off-chip interconnect. Today chips communicate with the rest of the system via solder joints; this provides for very limited bandwidths, far far less than 10 Giga items per second. This is mostly because process improvements that have allowed us to shrink our chips have not allowed us to shrink our solder joints. So off-chip bandwidth has not been scaling well over the years and is a significant bottleneck.

    2. Re:10Ghz? by ciroknight · · Score: 1

      The biggest advantage I could see coming from this would be an external or memory bus using an optical interconnect. Since light waves can be pushed a lot closer together than electron channels, and not interfere with each other in the processes, you could build quite the large memory bus. Imagine running 16 pipes of this technology, even clocked at 5GHz. That's a 80GHz memory bus.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    3. Re:10Ghz? by the+packrat · · Score: 1
      The 10GHz speed is how fast it can turn electrons into photons, but the chip is still primarily electron-based, so what is the real performance gain? They don't tell you because it probably isn't any yet.

      The benefit comes about when you can use this technology to provide high-speed capacitance-free interconnections between chips or between modules on the same chip. As chips get faster, it becomes extremely difficult to push data at this rate along long traces. One consequence of this is the push to put a couple of levels of cache on the same die as a processor with the attendant huge price jumps. If the latency of optical translation was sufficiently small, this would allow caches to be moved onto a second die millimetres away!

      --
      Nihil Illegitemi Carborvndvm
  11. Article Text by Anonymous Coward · · Score: 5, Informative


    minus the omniture spyware tracking and massive banners
    ________

    Startup Luxtera has announced its plans to enter the CMOS photonics market, anticipating the day when microprocessors will transmit information via light, not electrons.

    The company claims that its optical modulator for transforming electrons into photons runs at 10-GHz, ten times the speed of an optical modulator Intel Corp. researchers began talking about last year. Beginning in mid-2006, Luxtera hopes to enter production of photonic devices using standard CMOS manufacturing processes. ADVERTISEMENT

    Although the majority of chip-to-chip communications are conducted using copper-based interconnects, researchers are already looking toward the day when the balance shifts toward optical transmissions, initially for chip-to-chip interfaces between microprocessors, or between a microprocessor and memory device. Fibre optics are a standard component of modern telecommunication infrastructures, and interfaces such as Fibre Channel also use optical fibre interconnects to link up devices.

    Although light slows down by some degree when transmitted through an optical medium, shifting to optical-based components is still too expensive than relying solely on copper, even when factoring in the additional power, heat, and crosstalk issues.

    "The problem here that we can solve is a matter of bandwidth," said Gabriele Sartori, Luxtera's vice president of marketing and a former advocate for the HyperTransport protocol developed by Advanced Micro Devices.

    Part of the relatively high cost of photonics comes from the fact that converting electrons to photons requires an intermediary device, such as the modulator Luxtera is designing. Today, that device exists as a separate module. Intel, Luxtera, and others are trying to integrate the optical waveguides within standard CMOS processes, that can be controlled by the standard voltage swings of a microprocessor.

    However, doing so requires that the optical vendor have close ties to a microprocessor manufacturer. At Intel, that's no problem. Luxtera, on the other hand, has worked closely with Freescale Semiconductor to develop the technology. Finding a partner like Freescale is "necessary," Sartori said. "You must walk before you can run."

    Freescale has taped out several engineering samples of the optical technology, including a chip, one side of which includes the optical interface built in. The sample chip use a 130-nm SOI process, the same technology used to fabricate the G4 microprocessor. Part of Luxtera's job has been to develop silicon libraries, the files used to design the photonic chips in the same way other libraries serve as the blueprint for making more conventional semiconductors.

    The 32-employee startup originally received $7 million funding from Sevin Rosen Funds and August Capital in 2001, followed by an additional $15 million by New Enterprise Associates in 2003. Eli Yablonovitch, a professor at UCLA who developed photoelectronic crystals, sits on the company's board, while Arno Penzias, who won the 1978 Nobel Prize for his work on the Big Bang theory, serves in an advisory role. Other board members include Andy Rappaport of August Capital, which funded Transmeta, among others.

  12. Everyone keeps insisting by Anonymous Coward · · Score: 0

    "Moore's law will finally stall out, you can only make electron paths so small and then you hit a physical barrier".

    Oh yeah? Well then we'll just stop using ELECTRONS! BOOYA, bloggers!!!

    1. Re:Everyone keeps insisting by Anonymous Coward · · Score: 0

      You are so overexcited in that post. Obviously gay.

  13. Mistake in the blurb by PxM · · Score: 0, Troll

    The article isn't about pure photonic processors that working completely on light. These would be used in fiber optic routers where switching between light and electric signals is a waste. Data is already transmitted via light but the modulators used are seperate from the computing logic parts. In this new system, the computing system is still using classic transistors but the optical parts are integrated onto the IC. This is still a far step from pure photonic computers where the "transistors" or logic gates are done purely via light.

    --
    Want a free iPod?
    Or try a free Nintendo DS, GC, PS2, Xbox. (you only need 4 referrals)
    Wired article as proof

    1. Re:Mistake in the blurb by Anonymous Coward · · Score: 0

      Fuck off spammer

  14. Overclockers rejoice... by Anonymous Coward · · Score: 0

    If you overclock one of these babies and it starts to glow, that isn't necessarily bad...

  15. Multiprocessor systems for one. by Eunuch · · Score: 1

    This makes a lot of sense for an interconnect between chips on a single board.

    --
    Transcend Humanity. Please.
    1. Re:Multiprocessor systems for one. by Anonymous Coward · · Score: 0

      I'd be curious, is this something that would be a significant advantage or that they'd be likely to use in, say, buses? A fast chip isn't much good if you spend all the time waiting for signal to travel back from RAM...

  16. IBM, better info by tubbtubb · · Score: 4, Interesting


    IBM is working in this area also . . .

    Will be interesting to see a PowerPC with the guts of the VMX unit running at 10Ghz . . .

  17. Light pollution == inefficiency by Anonymous Coward · · Score: 1, Interesting

    Anytime you're using light for any purpose-- say, to light a parking lot, or to communicate between links in a processor-- and the light is visible to anyone or anything not explicitly served by that purpose, that's bad. If you're lighting a parking lot, and your lights are visible to planes passing overhead, that's bad, because that means you're paying to light the night sky for no reason. Similarly the chip manufacturers are going to want to make sure the photons stay inside of the microchip; if any is visible outside of the microchip, that means the light is leaking. Every bit of leaking light is wasted power. It would be like if your car was driving down the road and dribbling oil behind it as it went. You don't want your car to waste oil like that. You don't want your computer to waste light and therefore electricity either.

    1. Re:Light pollution == inefficiency by Marran+Gray · · Score: 1

      That was a joke, son.

      --
      "There are hundreds of game theorists at the gates, sir, and they want to hold an election!"
    2. Re:Light pollution == inefficiency by breagerey · · Score: 1

      I take it you're unfamiliar with the Total Loss Lubrication System pioneered by the british motorcycle industry.

    3. Re:Light pollution == inefficiency by Anonymous Coward · · Score: 0

      So if a joke flies over your head, it's the joke's fault for being inefficient?

    4. Re:Light pollution == inefficiency by Anonymous Coward · · Score: 0

      That was in no form a "joke". Jokes are funny.

  18. Re:d'oh. by tubbtubb · · Score: 1

    Ah yes, brutal dissappointment. As I read a bit further it looks like this is not optical logic.
    pfth.

  19. But.... by bob_herzog · · Score: 1, Offtopic

    Does it run Linux?

    Also, while I'm here...

    Imagine a Beowulf.....
    In Soviet Russia photons....
    3 PROFT!!
    Only old people use photons....

    --
    "I'll waste 'em with my crossbow!" ~Bob Herzog, Power Gamer
    1. Re:But.... by bogaboga · · Score: 1

      Mod parent down!

    2. Re:But.... by Anonymous Coward · · Score: 0

      Mod parent offtopic!

    3. Re:But.... by NanoGator · · Score: 1

      "Microsoft will waste these photons on eye-candy! Granted, that processing power will be useful in other stuff too, but when it comes to Microsoft I'm a minimalist! Mod me up!"

      --
      "Derp de derp."
  20. The Japanese... by bogaboga · · Score: 0, Troll
    The Japanese just like the Russians, are doing their research without any of our knowledge or bragging of any kind. I have a feeling that just like with the transistor in the 50s, these Japanese will come from behind and overwhelm our American companies in this new category of technology.

    I just looked around my living room and found that I have nothing electronic made here, save for the front door lock that was made by a company in Ohio.

    1. Re:The Japanese... by TheGavster · · Score: 1

      Because Intel, AMD, nVidia, and ATI are piddly companies with zero effect on the industry, demonstrating how the US and Canada are completely behind when it comes to semiconductors. A few more names for you: IBM, Cisco, Cray ... The west is far from fallen.

      --
      "Because Science" is one step from "Because old book". Try "Because of my experiment testing my falsifiable assertion".
    2. Re:The Japanese... by satans_advocate · · Score: 1

      er .. isn't nVidia Taiwanese?

      Besides which, all those companies that you mention have their fabrication plants in Taiwan, Japan or China .....

      So the chip designers are still in the US, but looking at the staff roll-call on chip design at intel, I see a lot of Chinese and Indian names. If their countries raise the standard of living to comfortable Western standards, they might go back to Asia.

      Then where are you?

    3. Re:The Japanese... by TruenoSuave · · Score: 1

      nVidia is an American company.

    4. Re:The Japanese... by Anonymous Coward · · Score: 1, Insightful

      People with Chinese or Indian names can't possibly be Americans? They all want to "go back home"?

      Interesting.

    5. Re:The Japanese... by FIT_Entry1 · · Score: 0

      I, for one, welcome our new Japanese overlords.

    6. Re:The Japanese... by satans_advocate · · Score: 0

      People with Chinese or Indian names can't possibly be Chinese or Indian nationals? They all want to "stay"?

      Sheesh.

    7. Re:The Japanese... by satans_advocate · · Score: 0

      (Looks up nVidia corporate) So it is!

      Every nVidia card I have purchased has been assembled in China and the GPU fabricated in Taiwan. And the manual has been in Chinese and Chinglish.

      Lazy of me to make the assumption that the company was Asian.

      I want to buy a card with the manual in Amerilish, it's marginally easier to understand than Chinglish.

    8. Re:The Japanese... by shibashaba · · Score: 1

      Try taking your electronics apart and look at the names/logos on the chips to see who made them. I'm sure you'll see plenty of motorola, texas instruments and plenty of other American companies. All the Japs did was take away all the profit from the electronics industry, no one makes any money off just about any of it. They just sell it to build up "brand awareness" -- marketing speak.

      --
      ---------- Open Source is capitalism applied to IP.
  21. You forgot one... by Anonymous Coward · · Score: 0

    YOU FAIL IT!

  22. Seeing is believing by Neo-Rio-101 · · Score: 0, Troll

    I'll believe it when I see it in action.

    --
    READY.
    PRINT ""+-0
    1. Re:Seeing is believing by NanoGator · · Score: 2, Funny

      "I'll believe it when I see it in action."

      Yeah because companies are always promising more processing power, but they never deliver!!

      --
      "Derp de derp."
    2. Re:Seeing is believing by rapidweather · · Score: 1
      Wait around a while for more processing power.

      Given the choice to get my old PS-1 out, with the 486sx-33 processor, or to use a P-4 HT instead, I somehow don't want to plug the PS-1 in anymore. That thing was slow when I got it.

  23. More detailed article at Forbes by Anonymous Coward · · Score: 4, Informative

    http://www.forbes.com/forbes/2005/0411/068.html

    Interestingly, the 10Ghz figure comes from a measurement made a researcher at Sun Labs, who have been working with Luxtera for more than a year now. The article also talks about what other companies such as Intel and IBM are up to.

    1. Re:More detailed article at Forbes by r_jensen11 · · Score: 0

      Sun Labs? As in Sun Microsystems? It's doomed to fail. Another potentially wonderful technology wasted...

  24. FYI Freescale=Motorola by Nova+Express · · Score: 4, Informative
    For those not up up on the twists and turns of the semiconductor industry, be aware that Freescale is Motorola's semiconductor division spinoff. They were responsible (with IBM) for the PowerPC, and developed the AltiVec (aka "Velocity Engine") vector processing technology used in current Apple PowerMacs. They still do a lot of microcontrollers for embeded devices.

    Just thought I'd clear up that potential confusion...

    --
    Lawrence Person (lawrencepersonh@gmailh.com (remove all "h"s to mail)

    http://www.lawrenceperson.com/

    1. Re:FYI Freescale=Motorola by Anonymous Coward · · Score: 0

      I thought it was a GPLed weight loss program for overweight hackers. Or is it that program that makes fonts look blurry?

    2. Re:FYI Freescale=Motorola by cloudturtle · · Score: 1

      Just to clarify a bit here. The PowerPC was actually a three way venture (not two) between Apple, IBM, and Moto/freescale. It is better known as the AIM alliance.

      Also, AltiVec was originally incorporated in to the G4 processor, which is currently used in the iBooks and PowerBooks. Actually, Apple no longer produces a computer that doesn't have a Velocity Engine vector unit.

      A couple tidbits:
      The G4 was made by Moto, the G5 was supposed to be as well but they pretty much stopped development of a true fifth gen PowerPC (apparently opting for a dual core G4, which rumors put as a possibility for PowerBooks if the G5 isn't ready for primetime).

      The G3 and G5 are made by IBM - although the G5 is basically a Power 4 with altivec slapped on for good measure (not a completely independent design. Then again PowerPC was not intended to be that different than Power).

      The Velocity Engine on the G4 is more powerful than the one IBM put in the G5, but the difference isn't big enough to hamper the much faster G5.

    3. Re:FYI Freescale=Motorola by gosand · · Score: 1
      For those not up up on the twists and turns of the semiconductor industry, be aware that Freescale is Motorola's semiconductor division spinoff.

      So Freescale != Motorola. :-) Actually, I used to work at Motorola, and owned some stock. I recently heard about the spinoff by receiving some shares of Freescale. Go Freescale!!

      1. Work at a company where innovation moves at the speed of a glacier.
      2. Purchase stock while working there, watch it decrease in value by 75%.
      3. Receive stock in spinoff company, watch them innovate and make money.
      4. Profit!

      --

      My beliefs do not require that you agree with them.

  25. solution for wiring problem? by tubbtubb · · Score: 5, Informative

    Actually this is less dissappointing that I originally thought --
    A major problem as CMOS processes get smaller and smaller is wires and wiring. Its really bad at 90nm and it looks like its going to be way worse at 65nm.
    Even if optical interconnects can just be used for long intra-unit busses (think L1 cache to fetch/decode unit, and there to integer unit and float unit, etc) we could see great performance gains.
    Something like when the upper metal layers in CMOS went to copper a few years ago.

    1. Re:solution for wiring problem? by Erich · · Score: 1
      Your suspicions are correct:

      65nm wiring is really slow. What we're seeing from TSMC is still bouncing around a bit for 65nm low power, but wires are slower than we were hoping.

      It looks as though people won't switch to 65nm because 65nm produces faster devices, instead people will go to 65nm for cost and capacity.

      --

      -- Erich

      Slashdot reader since 1997

  26. Communicating between chips by Anonymous Coward · · Score: 1, Interesting

    Although the clock on your cpu may be 3 GHz, the speed that you can communicate with the memory and other hardware is considerably less. It is actually quite difficult to get really fast speeds going on a printed circuit board. (My students have been able to get data moving at 6 GHz on a pcb so I'm fully aware that it can be done.) Being able to communicate with the memory at optical speeds could make your computer orders of magnitude faster.

    Remember that they are talking about serial communication however. To compare that to a 64 bit wide data bus, divide by 64. 10 GHz / 64 = 150 MHz, not that fast. So, you would need several modulators to actually see a speed improvement. If we look at this as a disruptive technology, it holds promise.

  27. Arm the photon processors! by Anonymous Coward · · Score: 0

    The subject says it all... just hope they don't launch Data in to space (yeah, yeah, he was destroyed in the last movie [sob]).

  28. Okay by Anonymous Coward · · Score: 0

    So now that these non-processing "processors" are available, what has to happen before benefits can appear to people who just go to Fry's and buy things? What has to happen, someone has to license these thingies and put them into a chip or a motherboard bus or something, and then we'll buy the chip or the motherboard bus? How many years can we expect before end-user productization happens?

  29. Re:Oh brother when will they ever learn by Anonymous Coward · · Score: 0

    This is sad... you have a Mac mini because it's cute? I bet you drive a VW bug with a flower vase in it too.

  30. Optical interconnects by karvind · · Score: 5, Informative
    The summary is misleading (as pointed out by other readers) as it is more of optical interconnect technology.

    Other groups working on optical interconnects: (incomplete list)

    Heriot Watt

    Cornell University

    IBM Zurich

    Delft

    UIUC

    Intel

    Stanford

  31. Re:Oh brother when will they ever learn by snuf23 · · Score: 1

    Sarcasm never works well in text does it?

    --
    Sometimes my arms bend back.
  32. Interesting, But... by PingXao · · Score: 1

    This will be like Crusoe. Solid technology basis. Involves significant tradeoffs. Market fails to materialize. Technology goes back on the shelf where if can be "discovered" again in 5 or 10 years.

  33. maybe someone smarter than I can.... by erroneus · · Score: 2, Interesting

    Maybe someone smarter than I can explain how it all works.

    Okay, I am down with light based switching mechanisms and all that. But in my mind, I'm wondering how registers are "storing" information. Light, to my knowledge, cannot be effectively stored. I recall from a couple of years ago someone attempting to make progress in that area but I don't recall hearing that they were successful.

    I guess it's time for me to go back to school on this new technology 'cause I *just* don't understand it. Anyone who does understand it care to spit out a few paragraphs to summarize how it works assuming the reader already understands the basics of digital electronics?

    1. Re:maybe someone smarter than I can.... by katharsis83 · · Score: 3, Informative

      "But in my mind, I'm wondering how registers are "storing" information. Light, to my knowledge, cannot be effectively stored."

      That's not an issue here, from what I can tell. The 10 GHz number is modulating light to electrical signals. All the actual storage and processing will be done just as before; you still have your Flip Flops and storing the bits. The only difference here is that instead of copper interconnects, we use light pulses. The benefit of this new technology is that it can be done with normal CMOS fabrication techniques.

      Anyone with more experience with this stuff is free to correct/clarify.

    2. Re:maybe someone smarter than I can.... by pkhuong · · Score: 1

      Yup, this is only for communication between components (or processors). BTW, for an optical processors, I guess you'd probably want to think of it more like function composition (e.g., the register file could be threaded between transformations instead of actually being stored).

      --
      Try Corewar @ www.koth.org - rec.games.corewar
  34. New meaning to deeply pipelined architectures by G4from128k · · Score: 3, Informative

    At 10 GHz and an index of refraction of 1.5, each 2 centimeters of light pipe adds 1 clock cycle to the latency to the system (2 clock cycles to the round-trip). Put a optically-connected device a foot (30 cm) from the processor and you have 15 clock cycles of data (or a 30 clock cycle response time) just due to the fiber, let alone any in the devices at either end of the fiber-optic pipe.

    Its always interesting to see what happens when the relative speeds of processor, memory, and interconnects change.

    --
    Two wrongs don't make a right, but three lefts do.
    1. Re:New meaning to deeply pipelined architectures by Anonymous Coward · · Score: 0

      Curiously enough the speed of light in fibre is quite similar to the speed at which an electrical signal propagates down a wire. This depends on the dielectric constant of the insulation, so would be fastest with air or vacuum around the wires...but with typical dielectric the speed is about .66 of c, which is very similar to the speed of optical fibre. Well, that figures since refractive index and dielectric constant are kind of similar....

  35. So it was real....... by pablo_max · · Score: 1, Funny

    I cant believe it!! That viewsonic computer runing at 10Ghz on amazon.com was real. I'm sure kicking myself for not buying it.

  36. Perfect! by RobertKozak · · Score: 5, Funny


    Now when I find a bug in my code I can just reconfigure the photonic matrix and reverse the polarity of the power coupling.

    And if that doesn't work I'll try modulating the field harmonics.

    This can really save me in a tight situation.

    Robert

    --
    Bet this .sig looks familiar.
    1. Re:Perfect! by Anonymous Coward · · Score: 0

      Now when I find a bug in my code I can just reconfigure the photonic matrix and reverse the polarity of the power coupling.

      And if that doesn't work I'll try modulating the field harmonics.

      This can really save me in a tight situation.


      And don't forget to fire a tachyon pulse from the primary emitter array.

    2. Re:Perfect! by Anonymous Coward · · Score: 0

      It must be an inverted tachyon beam or it will just make matters worse.

    3. Re:Perfect! by LurkerXXX · · Score: 1

      What ever you do, don't cross the streams!

    4. Re:Perfect! by zCyl · · Score: 0

      That would have been funnier if CleverNickName had posted it. ;)

  37. Re:Not a "Processor" [winhat] by winhat2 · · Score: 2, Funny

    It is a light, portable screen usually circular and supported on a short-term scale, but ultimately, they're just masking the real problem, which can only be solved by the level of thinking that created them.

    The average girl would rather have beauty than brains because she knows that the nature in which ramanujan was referred to as "indian math guy" in the sense of optical logic.

  38. Actually... by Anonymous Coward · · Score: 0

    That's an old fashioned honest to goodness Troll in the classical sense as opposed to "expresses an opinion I disagree with sense."

    Can you see the difference? Smell the quality. It's elegant, and beautiful in its simplicity, while being powerfully provocative.

    And look at you being the pendant, all modded up Informative with your response. He's exactly why Slashdot needs a +1 Troll option. And it should award double karma points.

  39. Optical Modulator? by Esion+Modnar · · Score: 2, Funny

    Where's the kaboom? There was supposed to be an earth-shattering kaboom! --Marvin the Martian

    --

    They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
    1. Re:Optical Modulator? by Anonymous Coward · · Score: 0

      Would have been funnier without the "--Marvin the Martian" tag on the end. I think just about everyone here knows where that quote originated.

  40. Re:Oh brother when will they ever learn by Anonymous Coward · · Score: 0

    Yes, I'm terrible at it.

    BUUURN!!!

  41. So what you're saying is... by Anonymous Coward · · Score: 0

    this won't affect the resolution of my porn, only its transfer rate.

  42. Re:Oh brother when will they ever learn by Anonymous Coward · · Score: 0

    Sarcasm never works well in text does it?

    doesn't the <Sarcasm> tag mean anything to you?

  43. History by Mr.+Underbridge · · Score: 0, Troll
    The Japanese just like the Russians, are doing their research without any of our knowledge or bragging of any kind. I have a feeling that just like with the transistor in the 50s, these Japanese will come from behind and overwhelm our American companies in this new category of technology.

    The transistor was invented in America, fuckstick.

    I just looked around my living room and found that I have nothing electronic made here, save for the front door lock that was made by a company in Ohio.

    Probably not, but why don't you check who had the original patent on whatever you look at? Commodity equipment is meaningless, and has nothing to do with R&D. Who developed the microprocessor? Telephone? TV?

    America's research and university system is what has allowed it to dominate a lot of R&D for the last 50 years. Too bad we're stifling innovation at our national labs through bureaucracy and cutting funding to university research. Yay! Maybe you'll be right in 50 years, but you aren't now.

    1. Re:History by Anonymous Coward · · Score: 0
      No it wasn't.

      The transistor was invented by aliens, from outter space. Americans found their crashed spacecraft at Roswell and stole the idea.

    2. Re:History by Cackmobile · · Score: 1

      yes it was knobshine but it was the japanese who commercialised it. I think thats what that guy was trying to say.

      --
      -- Karma Karma Karma Karma, Karma Chameleon - Boy George
    3. Re:History by satans_advocate · · Score: 0

      The transistor was invented in America, fuckstick.

      Possibly, but maybe not. The process by which it was invented is not well documented, even though the patent is. The basis of the transistor may have been a little bit of cold war theft.

      Who developed the microprocessor? Telephone? TV?

      Americans with brand-new pronouncable surnames.

      America's research and university system is what has allowed it to dominate a lot of R&D for the last 50 years.

      Actually, no. America's vast capital reserves and efficient capital markets have allowed it to dominate R&D for the last 50 years. Russia and China have produced a huge amount of innovative and inventive research, but lack the virtuous, steal, innovate, capitalise, commercialise, rinse, repeat cycle that America excels (excelled?) at.

      Too bad we're stifling innovation at our national labs through bureaucracy and cutting funding to university research.

      That won't matter as long as the US capital markets remain transparent and effecient. The current trend of poli-corporate-criminals indicates a trend towards corruption and opacity of those markets.

      Maybe you'll be right in 50 years, but you aren't now.

      The rest of the world subsidises US growth by propping up the currency, having it's best brains and talent immigrate there and bending over when it's technology is stolen and commercialised by American companies. In return for this subsidy, the rest of the world recieves access to the world's largest export (or import) market for it's commodities, tourism and specialist products.

      If the rest of the world decided that it didn't need that export market any longer, or if that market was closed by xenophobic terrorist warriors, then perhaps the subsidies would end, and that would be the end of the US free ride.

    4. Re:History by Mr.+Underbridge · · Score: 1
      yes it was knobshine but it was the japanese who commercialised it. I think thats what that guy was trying to say.

      I know he was but he was linking commercialization to R&D. I'm telling him and you that you're full of shit.

    5. Re:History by Cackmobile · · Score: 1

      awesome but why get so immature about it

      --
      -- Karma Karma Karma Karma, Karma Chameleon - Boy George
  44. The obligatory ... by KSobby · · Score: 1

    Yeah, but will it play Quake?

    --
    "It's difficult to meditate on amphetamines." - Joe Walsh
    1. Re:The obligatory ... by NanoGator · · Score: 1

      "Yeah, but will it play Quake?"

      Nope. They're using beams of light, but Quake uses shadow mapping.

      --
      "Derp de derp."
    2. Re:The obligatory ... by aurb · · Score: 1

      Yeah, but will it play Quake?

      Did you mean Doom III?

  45. Photon processors? Where are my photon by Anonymous Coward · · Score: 0

    torpedos, darn it!

    You can't blow up stuff with a little processor. Torpedos or nothing!

  46. This has interesting telephony applications by scott9676 · · Score: 1

    I could see new PBX systems being made out of this, where a fiber optic line could come into a company (or maybe 2 for redundancy), then running a fiber line to each floor of a building, where it would convert it to digital lines for traditional office phones. I don't know how many channels fiber can carry, but in a 10 Ghz signal, there's room for 100,000? 100 Khz signals.

    Combine this in a lot of buildings and all of the 'dark fiber' out there, and this could give VOIP a true run for it's money. Plus it keeps all the VOIP traffic off the internet.

    Sounds like the next evolution past T1/E1....

    Then again, with that kind of speed it could still be voip, but at CD quality sound. Though there are still potential legal differences between VOIP and telephony.

    Innovations like this keep the future interesting.

    1. Re:This has interesting telephony applications by Anonymous Coward · · Score: 0

      Wow, you just rediscovered SONET/SDH, better patent it before some one else does.

  47. Re:Oh brother when will they ever learn by PsychicX · · Score: 0

    is definitely not listed by W3C. So you shouldn't be using it at all. How many times do you people have to be told, avoid non standard tags!

  48. Put them on motherboards by al912912 · · Score: 2


    No. These are not "processors" of any sort. It is a new way to modulate signal between CMOS and optical at high frequency and small scale. It may provide faster bus speeds, assuming the reality matches the funding hype.


    I suppose then that putting them as the data bus to memory would be the best first thing to do. Imagine being able to read memory at register reading speed, that would be great even if you keep your same Pentium IV processor.

    1. Re:Put them on motherboards by gnuman99 · · Score: 1
      No you can't. Light is limited to c, just like the E field in the wires. At 3e8m/s, and a distance of 50cm to memory bit, that would take 0.5/3e8 ~ 1.7ns minimum for one way trip. That takes over 3ns to get to memory and back (ignoring any switching delays).

      3ns makes the memory access time equivelent to about 333MHz.

      What light gives you is more *bandwidth*. That also means you CPU will not run any faster, but it should be able to access to more memory at once. Multi-core/multi-thread processors like what SUN is advertising would benefit a lot from this technology. Single thread processors like P4 will not see any benefit.

      Anyway, current access times are now limited by the speed of light, so I guess it will not be getting too much faster.

  49. I have to be perfectly honest here... by PsychicX · · Score: 0

    I'm beginning to suspect that the Slashdot editors don't always read the news articles before posting them.

  50. thanks God by xufos · · Score: 1

    Finaly, the end of heatsink age.

    I wonder how to overclock one of these processor...

    1. Re:thanks God by Anonymous Coward · · Score: 1, Funny

      I wonder how to overclock one of these processor

      Just increase the speed of light.

    2. Re:thanks God by amanox · · Score: 0

      Just switch to warp-speed! Speed of light..pfff.. that is sooo passé...

  51. Photons? Extremely inefficient.... by r_jensen11 · · Score: 0

    Honestly, when we've already come so close to getting teleportation to work in real-life scenarios, why even bother with light? The way I see it, we're using a defunct technology already, and we'd be better off just skipping it and going directly to teleportation. Face it, if it's not instantaneous, it's too slow!

  52. "More light!" by lartful_dodger · · Score: 2, Funny

    what are they going to call this baby? Goethe?

    --
    The face of 'evil' is always the face of total need
    1. Re:"More light!" by Anonymous Coward · · Score: 1, Funny

      I'm sorry. Your comment appears to contravene the level of normal /. posts by assuming some knowledge outside of leet-speak and Linux vs Microsoft flames.

      Please dumb it down and try again.

  53. Suckered by Gogogoch · · Score: 1
    Hey Slashdot - don't you get it? This is all BS. "Hopes to enter production" means that there is not a hope in hell of entering production. It's marketing BS for a start-up looking to attract capital.

    Just think about the great achievements announced over the past 12 months regarding prototype devices. No. Wait. There haven't been any. Don't hold your breath - it will be years and years before anything like this "enters production".

    Sorry, it's just BS.

  54. Slashdot mislead by photon317 · · Score: 4, Informative


    If you read the article carefully (which is laced with marketing hype and was obviously written by someone only passingly familiar with the technologies involved), you will see that nobody's promising optical cpu's in 2006. In anticipation of future optical chips and other technologies, Intel has begun developing one of the stepping stones toward this technological era, which is an optical/electrical gateway of sorts which can be built on a standard electrical chip to allow it to interface with optical components. Think a modern cpu, with some low level optical/eletrical interface on the edge of it so that a row of optical "pins" can stick out one side in addition to the normal electrical pins on the bottom.

    This little startup company is working on the same thing, and hopes to have it out soon. Their marketing article is trying to build hype so they can get more cash. Nobody will be selling anyone an all-optical cpu in 2006 (or 2007, or 2008, etc).

    --
    11*43+456^2
  55. I can hear it now ... by KSobby · · Score: 2, Funny

    The tech support calls for this will trump all: Tech Answer 1: Data loss? Ma'am, it says clearly in the instructions that this device is not to be used near any singularity of any kind. It's been known to warp and bend results. Tech Anser 2: Sir, the machine is acting slowly? Are you by chance going 299,792,458 m/s? That drops performance to 286 levels. What's that? you're running BSD? So why are you complaining? Plenty of horsepower for that.

    --
    "It's difficult to meditate on amphetamines." - Joe Walsh
  56. Just a modulator by Laaserboy · · Score: 5, Interesting

    From the Article:

    The company claims that its optical modulator for transforming electrons into photons runs at 10-GHz

    I may not have a Nobel Prize, but I do have a Ph.D. in physics. Electrons do not tranform into photons. They may produce photons, but not turn into them.

    I see these articles that claim the creation of optical processors. But read the article, and all the researchers have to do is add a silicon processor and BOOM, we have an optical processor. It's not that easy.

    I remember the researcher who created an optical computer that was the size of a room. Why is this? Electrons are small. They bend around corners. They stay put. They move when you want them to. Photons do not bend well around small corners, do not support CMOS-like circuits and generally fail at most tasks of that versatile, tiny doer of great deeds, the electron.

    As usual, it's just an optical modulator. Boring old modulator.

    1. Re:Just a modulator by Bisqwit · · Score: 0, Redundant

      Laaserboy wrote:
      > I may not have a Nobel Prize, but I do have a Ph.D. in physics. Electrons do not tranform
      > into photons. They may produce photons, but not turn into them.

      But a collision of an electron and an antielectron produces two photons.

    2. Re:Just a modulator by AaronStJ · · Score: 1

      PhD or not, you don't need the attitude. It's fairly obvious what they meant by "transforming electrons into photon." Consider a modem. It would be perfectly reasonable to say a modem "transforms" digital signals into analog signals. The digital signal doesn't literally "turn into" the analog signal, but it's still a good high level description. Likewise, "transforming electrons into photons" is a solid descriptions of what their modulator does.

      And while this tech can't be used to create an optical processor, it can be used to vastly improve processors. As another poster pointed out, wiring and "long" wires is a major slowdown. Optical interconnects could greatly speed up things like cache access.

      --
      Stupid like a fox!
  57. Latency != Frequency by Corpus_Callosum · · Score: 5, Informative
    No you can't. Light is limited to c, just like the E field in the wires. At 3e8m/s, and a distance of 50cm to memory bit, that would take 0.5/3e8 ~ 1.7ns minimum for one way trip. That takes over 3ns to get to memory and back (ignoring any switching delays). 3ns makes the memory access time equivelent to about 333MHz.
    I think you are confusing latency and frequency. There are serious problems with long wires and high frequency because of parasitic effects. Light eliminates these parasitic effects, enabling a much higher bus frequency (clock rate).

    It may take a few nanoseconds for the light to bounce around, but that light can be modulated at extremely high rates (that electrical wires cannot). Managing latency is a well understood problem, generally solved by using speculation, buffering, etc..

    The fact is, if these parts are running at 10ghz, you will have 10ghz connections between connected parts (with a few nanoseconds of latency, which is mostly irrelevant).

    What light gives you is more *bandwidth*. That also means you CPU will not run any faster, but it should be able to access to more memory at once. Multi-core/multi-thread processors like what SUN is advertising would benefit a lot from this technology. Single thread processors like P4 will not see any benefit.
    Bandwidth is a measure of frequency and number of communication channels. This advancement does indeed provide more bandwidth, mostly because it can be clocked higher. All computer configurations could see substantial benefits because current electrical designs have highly limited bus speeds (it is not signal propagation that matters, but signal modulation speed "frequency").

    Anyway, current access times are now limited by the speed of light, so I guess it will not be getting too much faster.
    Again, signal propagation speed is mostly irrelevant. Signal modulation speed is what is important. Latency != Frequency.
    --
    The reason that it can be true that 1+1 > 2 is that very peculiar nonzero value of the + operator
    1. Re:Latency != Frequency by az4+h0th · · Score: 2, Informative
      It may take a few nanoseconds for the light to bounce around, but that light can be modulated at extremely high rates (that electrical wires cannot). Managing latency is a well understood problem, generally solved by using speculation, buffering, etc..

      The extra bandwidth does indeed allow more in-flight memory accesses, but there are many problems involved with this.

      First of all, there are implicit problems in the memory-level parallelism in applications. How many memory accesses are independent of each other? For example, code that manipulates hash tables or linked lists does not profit from additional bandwidth because the next memory access depends on the current one. Such code normally does things like:

      LD R1, 0(R1)
      do something on R1
      LD R1, 0(R1)
      etc

      See the dependency on R1

      Second, there are problems with the microarchitecture. Microprocessors contain two structures necessary to handle off-chip memory accesses: The Load/Store Queues (LSQ) and a special table to track these external accesses (called something like the miss address table, where miss refers to the corresponding cache miss). The LSQs track all in-flight loads and stores and they are used to check dependencies between loads and stores. The largest implementation I remember can track a total of 48 loads (is it p4?). The Miss Address Table contains references to all off-chip accesses. This table is usually smaller. Thus, even if all the memory accesses are independent and can be issued in parallel you cannot really take profit of all that bandwidth. Theoretically you can issue hundreds of memory accesses during the time an off-chip access is in progress. In reality you will end up with 20 or 30 (that does not include prefetches and alike).

      sorry for not including references

    2. Re:Latency != Frequency by Corpus_Callosum · · Score: 1

      At the end of the day, this provides a mechanism for the bus to operate at the same speed as the core in the CPU. When you have cache misses, you will still get a latency penalty ( potentially a few cycles in this case vs. 20 or more in traditional techniques ). Because the CPU doesn't have to wait for the data to pipe in at 1/6 it's clock, the downtime is greatly reduced.

      To see the effects of greater bus speed, just look at a G5 vs a G4. The difference would be much more pronounced when you move to the architecture proposed. I think the few cycles of latency from time to time will be a welcome relief from today's bus starved architectures.

      --
      The reason that it can be true that 1+1 > 2 is that very peculiar nonzero value of the + operator
  58. Multiple channels of optical in one fiber by Corpus_Callosum · · Score: 1

    One of the interesting things about light is that it is non-interfering. In other words, it should be possible to lay down multiple signals in a single fiber instead of having to bundle multiple fibers together. There have been many advancements in the communications industry around this topic that could be relevant here.

    By loosing the restrictions imposed by the PCB, it should also be possible to have much more ingenious designs. What this tech could do for SMP alone is staggering in it's implications (A Rack / cluster that acts as a tightly coupled SMP solution?).

    The mind boggles.

    One question I do have is whether they will be able to use this on-die as well as off. Can they replace electrical wiring on the chip itself with photonic pathways?

    --
    The reason that it can be true that 1+1 > 2 is that very peculiar nonzero value of the + operator
  59. photon processors are boring ... by kayumi · · Score: 0

    Photon processors are boring; what we want are photon torpedos for people who submit pointless comments.

  60. Cool by Legion303 · · Score: 1

    Maybe now I'll be able to crank all the settings up in Doom 3.

  61. What does this _mean_? by Alioth · · Score: 2, Insightful
    From TFA:

    Although light slows down by some degree when transmitted through an optical medium, shifting to optical-based components is still too expensive than relying solely on copper, even when factoring in the additional power, heat, and crosstalk issues.

    Is it just me or is this a really badly constructed sentence? It changes subject halfway through (from the speed of light in optical medium to the cost of copper).
  62. it isnt... by Anonymous Coward · · Score: 0

    1st April yet, but you'd better expect these jokes.
    The article is full of hints which show us it is one... AMD developed HT? WTF?! LOL

  63. Superfast by FoboldFKY · · Score: 1

    All we need now is for some Taiwanese guy to come along, increase the speed of light, and con us into buying his super-fast version. But it won't work this time... we're on to him...

    --
    We're geeks... We're the sorcerers of the modern-day world. --
  64. Modulator, Schmodulator.... by Ancient_Hacker · · Score: 1

    As far as I can tell from the mediocre article, all they've done is gotten a tiny LED to flash at a rate of 10 giga flashes per second. I guess you could call that a "modulator". But it's just a fast LED. And they havent explained how it's going to be a economical and compact way to shuttle data around.

  65. I'm severely disappointed by Nintenfreak · · Score: 0

    I click this topic and not a single mention of the word "Torpedo". Geeks must be losing their luster.

  66. Smaller chips? Less solder? by CrazyWingman · · Score: 1

    Hmmm...I wonder how "big" one of these interconnects is. Currently chips have pins that are visible to the human eye, and even solderable by the human hand. If it were possible to have optical "pinouts" that were really small, you could decrease the size of a chip package/circuit board. Of course, I suppose there would still have to be pins for power, but ya' know.

    And since an optical interconnect wouldn't need solder, these chips would need a completely different process for connection to a circuit board. No solder means that the chip could be affixed at a much lower temperature. Production lines already use machines to monitor circuit board assemblies to make sure all chips are lined up, but with optical interconnect, they'd probably have to be even more precise.

  67. DUH by Anonymous Coward · · Score: 0

    they have this already: DLP

  68. nope by Mr.+Underbridge · · Score: 1
    Americans with brand-new pronouncable surnames.

    Hey, we all came from somewhere else. It's the country, not the ethnicity that's making the difference.

    Actually, no. America's vast capital reserves and efficient capital markets have allowed it to dominate R&D for the last 50 years. Russia and China have produced a huge amount of innovative and inventive research, but lack the virtuous, steal, innovate, capitalise, commercialise, rinse, repeat cycle that America excels (excelled?) at.

    Hand in glove. America's university and research system is the best by far because it has resources and freedom. China hasn't done much (though it's improving very quickly), and Russia's done practically nothing since the fall.

    An inordinate amount of the difference making inventions in the last 50 occurred in America. Often by people not born here. That's why the university system works so well - because something like 48 of the top 50 research universities are in America, we get to steal and often keep the best talent. We aren't winning because we're smarter, as a whole.

    The rest of the world subsidises US growth by propping up the currency, having it's best brains and talent immigrate there and bending over when it's technology is stolen and commercialised by American companies. In return for this subsidy, the rest of the world recieves access to the world's largest export (or import) market for it's commodities, tourism and specialist products.

    The US currency didn't get that way because people decided it would be a nice thing to do. It's a result of all the other things that made it stable and worth something. Foreigners come to the US for college especially in science/tech because they're the best by far in terms of resources, human and capital. Many of those people stay.

    That won't matter as long as the US capital markets remain transparent and effecient. The current trend of poli-corporate-criminals indicates a trend towards corruption and opacity of those markets.

    That'll work for 10 years but your view is too static. Innovation drives success. Capital's important but if you don't keep ahead technologically, you end up in businesses with no margins and suddenly your capital becomes worthless. Consider if we hadn't invested in tech and remained an agrarian society. The best financial system wouldn't mean a thing because we wouldn't have anything worth investing in.

    1. Re:nope by satans_advocate · · Score: 0

      The US currency didn't get that way because people decided it would be a nice thing to do. It's a result of all the other things that made it stable and worth something.

      Well, it's really because Oil is sold in US dollars. It doesn't have to be of course, but those countries who think of selling it in another currency tend to get 'liberated' by the US marines.

      That'll work for 10 years but your view is too static. Innovation drives success. Capital's important but if you don't keep ahead technologically, you end up in businesses with no margins and suddenly your capital becomes worthless. Consider if we hadn't invested in tech and remained an agrarian society. The best financial system wouldn't mean a thing because we wouldn't have anything worth investing in.

      Really? Da Vinci invented a helicopter, Babbage invented a computer, and the Chinese invented gunpowder. All of those inventions went nowhere in the age they were invented.

      Invention is important yes, but it is only the first step in the creation of wealth. You need production, distribution and service for the things you invent, and those are only possible with capital, and more recently captial markets.

      Besides which, invention is something that all civilisations have been good at, so it may be something that is natural to us as humans. Even the most 'primitive' of hunter-gatherer societies have complex pharmacological preparations and tool/weapons.

      Abstract systems on the other hand are something that most people find very difficult to understand. So creating and maintaining those is the much harder task.

  69. Electrical What? by Jagasian · · Score: 1

    Everybody calls them "electrical" computers. So once we move on to light, will people change the name? I always thought it was a stupid distinction, personally. I mean, you would call mechanical engineering "metal engineering".

  70. Origin of MMX by CarpetShark · · Score: 1

    When newer processor technologies are developed, they're almost always deligated to server processors before they trickle down to desktop processors. (Of course, there are exceptions: MMX and its spawn, etc). Should've stuck to your guns :) MMX is vector processing technology, which started in supercomputers like Crays AFAIK.