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:
Dec. 02, 2003
Filed:
Mar. 22, 2001
Applicant:
Inventors:
Pei-Hwa Lo, Ramsey, NJ (US);
Herb Califano, Bloomingdale, NJ (US);
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 1/972 ;
U.S. Cl.
CPC ...
G01C 1/972 ;
Abstract
A system and method are provided for improving spectrum linewidth and stability while using the lasing region of a conventional laser diode light source. The inventive system and method provide a dithering signal for varying the drive current of the laser diode light source. By varying the drive current, the spectrum linewidth and stability of the conventional laser diode light source is significantly improved. Specifically, an optic fiber gyroscope can be driven by a conventional laser diode source which is powered by a dithered drive signal.