Or, could it be possible this is the new Chinese customer announced in 2016, that we could not be provided details about...
During the quarter, the Company completed internal qualification and began early production of DenseLight 2.5G DFB (distributed feedback) lasers, winning an initial customer order in China for applications in the Passive Optical Network (PON) broadband access network architecture, which is the dominant "Fiber-to-the-X" (FTTx) network architecture in use today. ‘Fiber-to-the-X’ or FTTx is a key enabler of today’s high-speed Internet, and advanced broadband networks are considered essential infrastructure to support future economic growth. The Company's sensor product roadmap for 2017 includes additional new product introductions targeted for the LIDAR (laser imaging, detection and ranging) market.
https://globenewswire.com/news-release/2016/11/28/893237/0/en/POET-Technologies-Reports-Third-Quarter-Financial-Results.html