>>12718958I work in photonics. Almost pure photonics computing has been achieved, they never took off commercially, there were busted companies in this field during the
dot.com crisis. They rely on materials with a non-linear refraction index, so that you can open or close light valves using light intensity as a control parameter. Its hard to harness the speed because as soon as you have a single electrical component thats going to operate at a top speed that will limit the whole system speed.
Light speed is too low anyway, you get a few more Ghz, its all very hard to build and no one cares, a computer is a computer
