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:
Apr. 27, 1999
Filed:
Oct. 17, 1997
Applicant:
Inventor:
Jean-Thierry Audren, St. Remy Les Chevreuse, FR;
Assignee:
SFIM Industries, Massy, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
356350 ;
Abstract
A gyro of the type having a multimode optical fiber loop in which light propagates in both directions before being recombined, together with a device constituting a phase conjugate 'mirror', wherein the device is a double phase conjugate 'mirror' and is disposed in the loop so that the light reaches said device from both sides thereof, with the incident light at each side of the device serving as a pumping wave for phase conjugation of the incident wave arriving at the other side of the device.