At what point do consumer devices start using internal optical interconnects?
I'd guess that fiber optics is only a net win over large enough distances that you make up the latency from converting electrics signals to optical and back.
It's a whole different problem to have even a short distance connection go up to GHz speeds.
I know optical on-chip networks have been the subject of research for many years, and I've heard rumblings of optical interconnects between chips. I don't know their current status, nor whether they look to be useful in practice. Hence my question.