US Patent Issued to NTT on Nov. 25 for "Optical transmitter" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,333, issued on Nov. 25, was assigned to NTT INC. (Tokyo).

"Optical transmitter" was invented by Shigeru Kanazawa (Musashino, Japan), Yasuhiko Nakanishi (Musashino, Japan), Takahiko Shindo (Musashino, Japan) and Meishin Chin (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical transmitter that multiplexes wavelength channels includes: a first light source; one or more second light source each having a different wavelength; collimator lenses coupled to respective outputs of the first and second light sources; an optical multiplexer that causes an output light beam from the first light source to be transmitted from a first end su...