US Patent Issued to CISCO TECHNOLOGY on Dec. 30 for "Bilayer silicon nitride polarization mode converter" (Pennsylvania, California Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,708, issued on Dec. 30, was assigned to CISCO TECHNOLOGY INC. (San Jose, Calif.).

"Bilayer silicon nitride polarization mode converter" was invented by Jean-Luc J. Tambasco (Macungie, Pa.) and Jonathan Edgar Roth (San Mateo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polarization rotator includes a bus waveguide disposed on a first layer having a longitudinal axis, a first end, and a second end, and a first upper waveguide and a second upper waveguide disposed on a second layer, above the first layer, the first upper waveguide and the second upper waveguide widening as the first upper waveguide and the second upper waveguide extend from...