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:
Jan. 10, 2017
Filed:
Nov. 14, 2012
Applicants:
Daniel A. Tazartes, West Hills, CA (US);
Bassam S. Dimashkie, Simi Valley, CA (US);
Inventors:
Daniel A. Tazartes, West Hills, CA (US);
Bassam S. Dimashkie, Simi Valley, CA (US);
Assignee:
Northrop Grumman Guidance and Electronics Company, Inc., Woodland Hills, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 19/72 (2006.01); G01C 25/00 (2006.01);
U.S. Cl.
CPC ...
G01C 19/721 (2013.01); G01C 19/72 (2013.01); G01C 25/00 (2013.01); Y10T 29/49826 (2015.01);
Abstract
A fiber optic gyroscope (FOG) is provided. The FOG comprises a depolarizer that receives light from a light source, a multifunction integrated optic chip (MIOC) and a sensing coil coupled to outputs of the MIOC. The FOG also includes a polarizer coupled between an output of the depolarizer and an input of the MIOC. The polarizer mitigates polarization non-reciprocity (PNR) bias error and enhances the polarization extinction ratio (PER) of the FOG.