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.

Date of Patent:
Oct. 09, 2001

Filed:

Jan. 27, 1999
Applicant:
Inventor:

Yugiao Liu, Sunnyvale, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 ;
U.S. Cl.
CPC ...
G02B 5/30 ;
Abstract

A circulator (,) includes a first collimating device (,) and a second collimating device (,) with three external optic fibers (,), (,) & (,) thereon wherein the first fiber (,) and the third fiber (,) are coupled to the second collimating device (,) while the second fiber (,) is coupled to the first collimating device (,). A non-reciprocal section (,) is positioned between the first collimating device (,) and the second collimating device (,). The non-reciprocal section (,) includes a first optic isolator section (,) and a second optic isolator section (,) commonly sandwiching a first light deflecting device (,) therebetween, and a second light deflecting device (,) being positioned between the second optic isolator section (,) and the second collimating device (,).


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