2. What is the difference between POET Starlight and the POET LightBar that it's built on?

POET LightBar is an optical engine with high-power continuous wave (CW) lasers passively attached to the optical interposer. Customers can use the LightBar in their solutions but would typically require some custom engineering work to couple light from the LightBar to their photonics. POET Starlight is a complete packaged light source that incorporates the LightBar along with other passive optical components and is connectorized on the electrical and optical ends. AI customers can use the Starlight product directly on their boards without requiring any additional optical alignments.

I therefore think it's important to note that the lightbar timeline is still on track for 2023 production as it was shown at the OFC.  It has customers interested in sampling it as well. We can look at The Lightbar as the base product platform (like a car assembly line as Suresh likes to say) then as the other the industry players will be requiring add ons like specifying from an options list at the auto dealership and adding features to the base lightbar menu so they can receive their customized solutions.