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:
Jun. 09, 2020
Filed:
May. 13, 2019
Applicant:
Patrick Dumais, Ottawa, CA;
Inventor:
Patrick Dumais, Ottawa, CA;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/27 (2006.01); G02F 1/01 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/276 (2013.01); G02F 1/011 (2013.01); G02B 2006/12061 (2013.01); G02F 2001/0113 (2013.01); G02F 2203/06 (2013.01);
Abstract
The present invention provides a photonic device such as a variable optical attenuator, in which two signal components, propagating in modes of two different polarization states, are converted to two different modes of the same polarization state prior to modulation. The modulation of both components is performed by a single device which applies the same modulation strength to both components. The two signal components can be converted back to propagate in the two different polarization states following modulation.