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. 27, 2014
Filed:
Dec. 23, 2011
Applicants:
Zhongjian Wang, Shenzhen, CN;
Michael Ayliffe, Ottawa, CA;
Qinrong Yu, San Jose, CA (US);
Niki Liu, Shenzhen, CN;
Rongtang Fan, Shenzhen, CN;
Inventors:
Zhongjian Wang, Shenzhen, CN;
Michael Ayliffe, Ottawa, CA;
Qinrong Yu, San Jose, CA (US);
Niki Liu, Shenzhen, CN;
Rongtang Fan, Shenzhen, CN;
Assignee:
JDS Uniphase Corporation, Milpitas, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to an electro-static variable optical attenuator suitable for use in a small form factor pluggable module. A short cladding suppressing fiber, such as a double clad optical fiber, dissipates attenuated light coupled to the cladding to reduce modal interference in the output light, while also reducing PDL and WDL introduced by the off set attenuation mechanism.