Build Your Own 10Mbit/sec Optical Data Link
redcliffe writes: "This website has complete plans to build a 10 megabit per second optical data link that can work over up to 1 kilometre. It uses fairly cheap components, such as standard LED's instead of laser diodes. This also makes it a lot safer to work with, i.e. you won't burn your eyes out if you accidently look into it."
that can work over up to 1 kilometre
Way to go, "editors"!
What's the point of all this? You can just run ethernet over fiber, and a lot longer distance than 1km. You can also get ethernet in a whole lot better than 10Mbps these days.
The equipment is perfectly standard, and if you count your time, a whole lot cheaper.