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:
Dec. 10, 2013
Filed:
May. 31, 2012
Haijun Yuan, Pleasanton, CA (US);
Xuehua Wu, Union City, CA (US);
Christopher Lin, El Cerrito, CA (US);
Giovanni Barbarossa, Saratoga, CA (US);
Haijun Yuan, Pleasanton, CA (US);
Xuehua Wu, Union City, CA (US);
Christopher Lin, El Cerrito, CA (US);
Giovanni Barbarossa, Saratoga, CA (US);
Other;
Abstract
An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.