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:
Mar. 16, 2021
Filed:
Apr. 15, 2019
Applicant:
Huawei Technologies Co., Ltd., Guangdong, CN;
Inventors:
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/27 (2006.01); G02B 6/26 (2006.01); G02B 26/02 (2006.01); G02B 6/126 (2006.01); G02B 6/12 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
G02B 6/272 (2013.01); G02B 6/12004 (2013.01); G02B 6/126 (2013.01); G02B 6/262 (2013.01); G02B 6/268 (2013.01); G02B 26/02 (2013.01); G02B 27/28 (2013.01);
Abstract
An optical coupling apparatus includes: a coupling and polarization beamsplitter, a phase shifter, a 2×2 adjustable beamsplitter, a photoelectric detector, and a microprocessor. Light in any polarization direction can be coupled from an optical fiber into a waveguide, an extra insertion loss is small, intrinsic insertion losses for light in different polarization directions are the same, a structure is simple, and miniaturization is easy to be implemented.