US Patent Issued to GlobalFoundries U.S. on Dec. 2 for "Photonic integrated circuit including optical absorber for terminal end of waveguide" (New York Inventor)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,401, issued on Dec. 2, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Photonic integrated circuit including optical absorber for terminal end of waveguide" was invented by Yusheng Bian (Ballston Lake, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A photonic integrated circuit (PIC) includes a waveguide in or over a semiconductor substrate. The waveguide has a terminal end. The PIC also includes an optical absorber having a curved shape adjacent to opposing sides and an endwall of the terminal end of the waveguide, i.e., it surrounds the terminal end of the waveguide. The optical absorber is multi-layered and includes a light absorbin...