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:
Oct. 28, 2014
Filed:
Dec. 20, 2011
Applicant:
Yongwook Lee, Busan, KR;
Inventor:
YongWook Lee, Busan, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); G02B 6/27 (2006.01);
U.S. Cl.
CPC ...
G02B 6/27 (2013.01);
Abstract
An optical fiber multi-wavelength filter based on a polarization-diversity loop configuration within which polarization-maintaining fibers are contained with some optical elements is disclosed. The filter includes a coil heater adjacent to polarization-maintaining fibers. An ambient temperature of the polarization-maintaining fiber is controlled by adjusting a current applied to the coil heater.