I have no inside confirmation of this, only the NR put out by Luxmux:

Luxmux’s President and CEO Yonathan Dattner stated, “Engaging with POET Technologies as a supplier and strategic partner is an important milestone for Luxmux, as it increases our capabilities in the photonics market. We researched several suppliers and selected the Denselight SLED because of its unparalleled quality and performance. We are excited by the opportunities afforded by this collaboration as well as the technologies this partnership will enable us to bring to the market.”