“Optical engines for 100G and 200G applications will be sold exclusively world-wide by SPX. 400G optical engines will be sold by SPX in the China territory while the Company will sell 400G optical engines to customers in the United States, Europe and elsewhere outside the China territory. Volume production of optical engines and packaged light sources designed for specific customers with high volumes is expected to ramp in mid-2024”
100/200G applications are legacy products and I believe the above addresses to 400G pretty clearly. Applications beyond that, 800G, 1.6/3.2T, if they incorporate 400G optical engines? Clear as mud. But the fact the POET suggests manufacturing its own 800G+ transceivers seems to imply that anything incorporated to achieve that level and higher remains in their purview. I’ll guess it will end up being contracted to SPX at a renegotiated cost+ rate per OE versus the at-cost agreement for everything at 400G or less. To do otherwise (POET contracting with someone else) would be a lose-lose.