ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,971, issued on May 12, was assigned to Sintela Ltd. (Lodway, Great Britain).

"Optical measurement system" was invented by Stuart J. Russell (Lodway, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical measurement system in which a coherent light source generates a light signal, and a launch stage receives the light signal from the light source and generates a test signal. The test signal is launched along an optical path. The launch stage includes a first IQ modulator for controlling the test signal. The optical measurement system further includes a local oscillator stage configured to generate a local oscillator signal, wherein l...