Infinera's optical routing gear is built around an all-in-one optical networking chip--which it calls a Photonic Integrated Circuit--that shrinks down the work done by a hodgepodge of parts in boxes from other vendors onto a pair of chips smaller than a fingernail.
It's this separation of layers and horizontal flow of current that gives OLET its efficiency and it's believed that it could not only be used for (next) next-generation displays but also for on-chip optical interconnects.