US Patent Issued to Ciena on Feb. 24 for "Managing evanescent optical coupling in photonic integrated circuits" (Canadian Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,757, issued on Feb. 24, was assigned to Ciena Corp. (Hanover, Md.).

"Managing evanescent optical coupling in photonic integrated circuits" was invented by Yves Painchaud (Quebec, Canada), Marie-Josee Picard (L'Ancienne-Lorette, Canada) and Antoine Bois (Quebec, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first waveguide core structure (WCS) is configured to confine an optical wave (OW) at a first wavelength to a first mode and a second wavelength to a second mode, each over a coupling region (CR). A second WCS is configured to confine an OW at the first wavelength to a third mode and the second wavelength to a fourth mode, each over the ...