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:
Nov. 09, 2004
Filed:
May. 15, 2002
Applicant:
Inventors:
Jens Peupelmann, Krummenhennersdorf, DE;
Egbert Krause, Burgstaedt, DE;
Adalbert Bandemer, Dachau, DE;
Assignee:
Thorlabs GmbH, Karlsfeld, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 4/00 ; G02B 6/00 ; G02B 6/26 ; G02B 6/34 ;
U.S. Cl.
CPC ...
G01J 4/00 ; G02B 6/00 ; G02B 6/26 ; G02B 6/34 ;
Abstract
A fiber polarimeter has one or more oblique fiber Bragg gratings disposed one behind the other in a fiber. The fiber Bragg gratings couple out portions of a light wave input to the fiber depending on its polarization. For more than one fiber Bragg grating a wave plate is disposed in the fiber between consecutive fiber Bragg gratings. The portions of the light wave from the fiber Bragg grating(s) are detected to produce measurement data that is used to calculate four Stokes parameters for determining polarization, degree of polarization and/or power of the light wave.