Welcome.

this line from the last paragraph is interesting:

One of the larger barriers to the adoption of electro-optical computing, or indeed any novel method of computing, is whether it slots tidily into existing manufacturing processes: when you're a company like Intel with billions of dollars sunk into capital equipment, you ideally want to stick to tools, materials, and processes that you already know a lot about.

POET has already done this...IBM will have to take a number and get in line.