B&C thanks for the clarity. I should explain a statement I made. It is an assumption on my part that POET's second generation light bar for AI is associated with CAI's 2nd generation needs but I think it is a sound conclusion. The question for me, is POET's light bar including Vanguard's integrated microlense considered first generation or second generation. Does second generation include interlocking alignment features found in some of the recent patents? Does the 2nd generation include overlapping send and receive waveguides on seperate planes within the same footprint producing an extreme density? 

Poet Technologies and Vanguard Automation will initially collaborate to integrate the microlenses on Poet's LightBar products, aimed at AI (artificial intelligence)-ML (machine learning) accelerators and bio-sensing applications to validate power efficiency improvements and the viability of chip-scale, wafer-level manufacturing using microlenses. Poet expects to start sampling LightBar products incorporating Vanguard Automation's microlenses to customers in the second half of 2023.

Very interesting that SPX is now showcasing the same lightbar that is shown on POET's presentation.

https://poet-technologies.com/docs/presentations/POET-Annual-General-and-Special-Meeting.pdf 

page 11.

http://www.superphotonics-ic.com/en_product_info.aspx?id=20 

bottom right on products page as you pointed out.