[parsimo2010]

This has limited applications. It doesn't have a viable path to being used in a CPU or GPU. So we're not going to see a zillion-fold increase in compute speeds from this. Maybe some physicists find it useful for an experiment, but the average joe won't notice anything different about the world.

[kelseydh]

I'm curious if this move by TSMC can use this research?: https://spectrum.ieee.org/microled-optical-chiplet

They seem like related attempts at creating optical processors.

[parsimo2010]

OP's link is about a photonic transistor using graphene. Your link is about making interconnects using individual LEDs and fibers in parallel instead of putting multiple wavelengths on one fiber. They are only superficially related.