Photonic Chips Will Change Computing Forever... If We Can Get Them Right

Using photons in computers instead of electrons could make light-speed computing possible, but at what cost?

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Scientists Create Diodes Made Of Light
https://phys.org/news/2018-03-scienti...
“Photonics researchers at the National Physical Laboratory (NPL) have achieved the extra-ordinary by creating a diode consisting of light that can be used, for the first time, in miniaturised photonic circuits.”