Thanks, oz4m2,

after a short screening of these patents it does not look like this is a monolytic integration of a transceiver. Monolytic means: All on one substrate. If not they all will sooner or later run into the latice mismatching problem, thermal stress breaks, alignment issues...

They have to explain how they are doing the "logic" with their InP chip. Without the magic of GTs thyristor I have no idea how they can do that. In these patents they do not explain it, they are just gluing external optical systems to carrier substrates... No, no, no.

But yes, they did a nice job integrating the optical units in one chip. Poet is integrating all optical components of our AOC (VCSEL, logic and receiver)!