Slashdot Mirror
Intel's New Silicon Photonics Module For Data Centers Beams Info at 100Gbps Across 2km (zdnet.com)
An anonymous reader writes:Intel has announced it's launching silicon photonics, a product 16 years in the making, to enhance the use of optics for data center traffic management. It has a tremendous advantage over other silicon solutions, Intel executive vice president Diane Bryant said at the Intel Developer Forum in San Francisco. Intel is "the first to light up silicon," she said, integrating the laser light-emitting material onto silicon. It uses silicon lithography to align the laser with precision, she said, creating a cost advantage because it's automatically aligned. It has a performance advantage because of the precision of lithography. The module Intel is introducing delivers 100 gigabits per second. With network traffic in the data center doubling every 12 months, electrons running over copper cable just won't cut it, Bryant said. However, the cost of fiber optics is growing, positioning silicon photonics as the next solution.The company adds that the silicon photonics module can deliver the data across two kilometers.
Finally, I can watch my streaming 16K 3-D reruns of the re-re-re-mastered original star trek series on my smart watch.
Maybe then, 'Spock's Brain' will finally be watchable...
And? Won't this still require fiber optic connections between equipment?
This looks to be a new type of transponder not a new type of cable.
Minimum threshold fixed. Thanks!
Inflation doesn't mean growing cost. 20% inflation and an object going from $100 to $115 means the cost is shrinking.
There's all kinds of ways to make weird economic statements. You can ignore inflation and just point to raw dollars (i.e. $5 in 2016 is expensive; the thing cost $1 in 1938!). You can claim the cost of X is growing because the utilization is growing--we're running 50,000 meters of fiber optics instead of 500, so the cost of fiber optics now represents a bigger chunk of the data center's budget (100x more stuff, even if it costs 1/10 as much, is still 10x the cost).
Technology shifts how we do things. New technology means making a thing is cheaper; scarcity means your technology doesn't scale that high (more labor per unit to make that much that fast); and the deployment of a new technology to replace an old technology increases its market share, raising that technology's total marginal cost. I find it surprising that fiber optics would increase in cost per linear foot, considering fiber optics are relatively easy to produce in mass quantity and shouldn't have any scarcity issues.
Support my political activism on Patreon.
. . . and transistor interconnect tomorrow? It's going to have to happen eventually.
My 64 teravoxel 3-D holograph projector on my watch needs more bandwidth! 16K 3-D... How quaint...
The advantage of silicon photonics is to integrate the optical elements (lasers & PIN diodes) into the silicion drivers and amplifiers, theoretically reducing cost.
There are already 100 Gbps CWDM4 QSFP28 (4 wavelengths of 25 Gbps on 2 fibers) and 100 Gbps PSM4 QSFP28 (single 25 Gbps wavelength on 8 parallel fibers) transceivers out there, but they need discrete lasers & PIN diodes in InP or GaAs, not silicon.
So we will see how Intel's silicon photonics 100 Gbps CWDM4 QSFP28 and 100 Gbps PSM4 QSFP28 transceivers end up being priced.
My impression is that 50 Gbps wavelengths are coming soon (using 4-level PAM), so two of those will be 100 Gbps. But the holy grail is the one wavelength 100 Gbps, likely some kind of high-order modulation (HOM). AppliedMicro has demonstrated a 100 Gbps single-wavelength PAM4, but no word on distance.
Reminds me of a failed startup in Boulder years ago: http://www.lightreading.com/network-photonics-shuts-down/d/d-id/591009