The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2024
Filed:
May. 13, 2021
Applicant:
Tokyo Institute of Technology, Tokyo, JP;
Inventors:
Assignee:
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/40 (2013.01); G02B 6/42 (2006.01); H04B 10/25 (2013.01); H04B 10/50 (2013.01);
U.S. Cl.
CPC ...
H04B 10/40 (2013.01); G02B 6/4246 (2013.01); H04B 10/25891 (2020.05); H04B 10/503 (2013.01);
Abstract
An optical transceiver supports bidirectional communication with another optical transceiver that is a communications partner via a single-mode optical fiber. A surface emitting laser has a T-band oscillation wavelength that is shorter than the cutoff wavelength of the optical fiber. A photodetector has detection sensitivity with respect to the T band. A planar lightwave circuit couples the optical fiber, the surface emitting laser, and the photodetector.