BAD HARDWARE WEEK

Team at Stanford's School of Engineering has demonstrated an ultrafast nanoscale light-emitting diode (LED) that is orders of magnitude lower in power consumption than today's laser-based systems and is able to transmit data at the very rapid rate of 10 billion bits per second.
"Our device is some 2,000 times more energy efficient than best devices in use today," said Vuckovic.

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99% BAD HARDWARE WEEK: That means hundreds of them could fit in LED array at affordable power consumption. 
Here are Intel's Silicon photonics efforts. But, when they will make laser modulators temeperature stable?