ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,221, issued on Oct. 14, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Tunable optical add/drop multiplexer" was invented by Kui Ouyang (Wuhan, China), Tenghao Li (Shenzhen, China), Luo Han (Dongguan, China), Xiaoshi Dong (Shenzhen, China), Fengpei Sun (Shenzhen, China) and Zhiwu Chang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides a tunable optical add/drop multiplexer T-OADM. A beam adjustment apparatus changes an incident angle at which an incident beam is emitted onto an optical filter. After the optical filter splits the incident beam into a transmitted beam and a reflected beam, the...