Looks like an important patent. Very detailed with many illustrations. A nice one to take a look at.
Date of patent : february 21st, 2023
Patent number : 11585984
Inventors : Suresh Venkatesan, Los Gatos CA (USA); Miroslaw Florjanczyk, Kanata (CA); Trevor Hall, Ottawa (CA); Peng Liu, Kanata (CA); Jing Yang, Singapore (SG)
Dual core waveguide
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/11585984
Does Poet still have photonics design capabilities in Ottawa or did it end when Bill Ring left?