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. 27, 2001
Filed:
Mar. 29, 1999
Applicant:
Inventor:
Michael L. Wach, Atlanta, GA (US);
Assignee:
Cirrex Corp., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 ;
U.S. Cl.
CPC ...
G02B 6/26 ;
Abstract
A device for filtering light propagating within waveguides, including optical fibers. The device includes an optical filter, a first waveguide section and a second waveguide section positioned between the filter and the first waveguide section. The diameter of the second waveguide section is greater on the end proximate to the optical filter than on the end opposite the optical filter, typically tapering from one end of the second waveguide section to the other. Benefits include reduction of power density, collimation of light for filtering and/or facilitation of optical coupling, and robustness.