Homemade 10 Mbit/s Laser / optical Ethernet transceiver

Today’s network backbones don’t use copper wires any more — they use lasers to transmit information. The laser light usually propagates in a fiber, but while convenient, this isn’t strictly necessary; you can also send the laser light through the air in a collimated beam, like an ordinary laser pointer. Because this sounds cool, I thought I could build something like that. Here’s the prototype: Concept For simplicity, I decided … Continue reading Homemade 10 Mbit/s Laser / optical Ethernet transceiver