ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,665, issued on June 23, was assigned to Apple Inc. (Cupertino, Calif.).
"Compact optical phase shifter" was invented by Jason S. Pelc (Sunnyvale, Calif.) and Wei Liu (Mountain View, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are directed to photonic integrated circuits that include a carrier-based phase shifter. The carrier-based phase shifter is configured as a PIN phase shifter with a pair of traces that delivers current through a PIN diode. The PIN phase shifter is configured such that current flows through the pair of traces in a common direction."
The patent was filed on Aug. 3, 2023, under Application No. 18/230,098.
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