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. 24, 2010
Filed:
May. 13, 2008
LI Wu, Fujian, CN;
Xianghua Shi, Fujian, CN;
Zan Gong, Fujian, CN;
Jiwu Ling, Fujian, CN;
Zhaoyang Sun, Fujian, CN;
Xiangtong Yang, Fujian, CN;
Yunbin Xu, Fujian, CN;
Lei Lin, Fujian, CN;
Fuquan Huang, Fujian, CN;
Li Wu, Fujian, CN;
Xianghua Shi, Fujian, CN;
Zan Gong, Fujian, CN;
Jiwu Ling, Fujian, CN;
Zhaoyang Sun, Fujian, CN;
Xiangtong Yang, Fujian, CN;
Yunbin Xu, Fujian, CN;
Lei Lin, Fujian, CN;
Fuquan Huang, Fujian, CN;
Photop Technologies, Inc., Fuzhou, CN;
Abstract
An optical isolator includes a birefringent material and a Faraday rotator. The birefringent material receives a forward light propagating in a forward direction and a backward light propagating opposite to the forward direction. The birefringent material has an optical axis, wherein the forward light has a first polarization aligned perpendicular to the optical axis and is configured to pass the first birefringent material substantially along the forward direction. At least a portion of the backward light has a second polarization not perpendicular to the optical axis. The first birefringent material can displace the backward light to form a first displaced backward light. A Faraday rotator can rotate the forward light, and the backward light or the first displaced backward light by a same predetermined angle along the rotation direction.