ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,804, issued on April 21, was assigned to NTT Inc. (Tokyo).
"Optical circuit" was invented by Takahiko Shindo (Musashino, Japan), Meishin Chin (Musashino, Japan), Shigeru Kanazawa (Musashino, Japan) and Yasuhiko Nakanishi (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The optical circuit of the present disclosure provides a new optical transmitter configuration that achieves both high output and high quality transmission characteristics regardless of variations at cleavage positions. The optical circuit of the present disclosure may be an optical transmitter having an AXEL configuration in which an EADFB laser and a semiconductor o...