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:
May. 07, 2019
Filed:
Nov. 08, 2016
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/27 (2006.01); G02B 6/35 (2006.01); G02B 6/42 (2006.01); G02F 1/31 (2006.01); G02F 1/137 (2006.01); H04B 10/25 (2013.01); H04J 14/06 (2006.01); H04Q 11/00 (2006.01);
U.S. Cl.
CPC ...
H04Q 11/0005 (2013.01); G02F 1/137 (2013.01); G02F 1/31 (2013.01); H04B 10/25 (2013.01); H04J 14/06 (2013.01); G02B 6/272 (2013.01); G02B 6/2713 (2013.01); G02B 6/3594 (2013.01); G02B 6/42 (2013.01); H04Q 2011/0015 (2013.01); H04Q 2011/0026 (2013.01); H04Q 2011/0035 (2013.01); H04Q 2011/0039 (2013.01); H04Q 2011/0052 (2013.01);
Abstract
Embodiments of the present invention provide a liquid crystal grating-based optical switching apparatus, including an input collimator, an input polarization beam splitter, an input quarter-wave plate, a liquid crystal grating, an output quarter-wave plate, an output polarization beam splitter, and an output collimator. A transmission path is selected for an optical signal by changing a voltage of a liquid crystal grating so that the optical signal is output to a selected output.