ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,962, issued on April 29, was assigned to Nippon Telegraph and Telephone Corp. (Tokyo).
"Optical transmitter" was invented by Takahiko Shindo (Musashino, Japan), Meishin Chin (Musashino, Japan) and Shigeru Kanazawa (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In an EADFB laser with an integrated SOA, a new configuration in which deterioration of optical waveform quality is solved or mitigated while taking advantage of characteristics that the same layer structure can be used and the manufacturing process can be simplified is shown. In an optical transmitter of the present disclosure, a carrier density is optimized depending on a li...