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:
Mar. 04, 2014
Filed:
Oct. 15, 2010
Applicants:
Yatao Yang, Plano, TX (US);
Chang Xiao, Shenzhen, CN;
Yujian Bao, Shenzhen, CN;
Fenhong Zhou, Shenzhen, CN;
Inventors:
Yatao Yang, Plano, TX (US);
Chang Xiao, Shenzhen, CN;
Yujian Bao, Shenzhen, CN;
Fenhong Zhou, Shenzhen, CN;
Assignee:
JDS Uniphase Corporation, Milpitas, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/04 (2006.01); H01J 3/14 (2006.01); G02B 6/26 (2006.01); G02B 6/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A compact PD unidirectivity solution for an optical tap monitor, which reduces the overall size of optical tap module, is provided. The solution is to use lensing to separate the light from the input and output fibers, and then add a mask or spacer in front of the monitor PD to prevent any of the light from the output fiber from entering the photodetector package.