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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.:

US 9766421 B1

PDFFull Text
Date of Patent:
Sep. 19, 2017

Filed:

Sep. 04, 2012

Method for compensating for wavelength shift in wavelength selective switch, and device therefor

Applicants:

Liu Yang, Wuhan, CN;

Meng Wang, Wuhan, CN;

Zhilin Yuan, Wuhan, CN;

Rui Yang, Wuhan, CN;

Lidan Song, Wuhan, CN;

Liping Sun, Wuhan, CN;

Jinping Guo, Wuhan, CN;

Dingkang Chen, Wuhan, CN;

Yuhong MA, Wuhan, CN;

Lihong Tang, Wuhan, CN;

Inventors:

Liu Yang, Wuhan, CN;

Meng Wang, Wuhan, CN;

Zhilin Yuan, Wuhan, CN;

Rui Yang, Wuhan, CN;

Lidan Song, Wuhan, CN;

Liping Sun, Wuhan, CN;

Jinping Guo, Wuhan, CN;

Dingkang Chen, Wuhan, CN;

Yuhong Ma, Wuhan, CN;

Lihong Tang, Wuhan, CN;

Assignee:

Accelink Technologies Co., Ltd., , CN;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Mike Stahl

Int. Cl.
CPC ...
G02B 7/182 (2006.01); G02B 7/00 (2006.01); G02B 7/18 (2006.01); G02B 26/08 (2006.01); B32B 41/00 (2006.01); G02F 1/29 (2006.01); H04J 14/02 (2006.01); H04Q 11/00 (2006.01);
U.S. Cl.
CPC ...
G02B 7/008 (2013.01); B32B 41/00 (2013.01); G02B 7/181 (2013.01); G02B 26/0816 (2013.01); G02F 1/29 (2013.01); H04J 14/0212 (2013.01); H04Q 2011/003 (2013.01);
Abstract

A method for compensating for a wavelength shift in a wavelength selective switch (WSS), and a device therefor. The device comprises a fixed seat () as well as a rotation beam () and a compensation block () that have different thermal expansion amounts, the rotation beam () and the compensation block () being fixedly adhered to the fixed seat (). In the method, a combined structure of the rotation beam () and the compensation block () with different thermal expansion amounts is adopted; the combined structure rotates by means of different expansion amounts generated by the rotation beam () and the compensation block () at the same external temperature, and further drives an optical element of the WSS to rotate, hence compensating for a wavelength shift of the WSS. The method is safe and reliable; the device has a simple structure, and is convenient to encapsulate, is applicable to various WSS optical paths, and does not affect advantages of the optical path structure of the WSS.

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