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:
Feb. 27, 1996
Filed:
Apr. 05, 1989
Applicant:
Inventor:
Laurence G Cote, Thousand Oaks, CA (US);
Assignee:
Litton Systems, Inc., Woodland Hills, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; H01S / ;
U.S. Cl.
CPC ...
356350 ; 372 94 ;
Abstract
Disclosed herein is an apertureless ring laser gyroscope which achieves higher order transverse mode suppression without the use or need for a restrictive aperture that can be a source of unwanted scatter. Such mode suppression is achieved by operating the ring laser gyroscope in a higher pressure range (from 12 to 18 torr) than the range normally considered for ring laser gyroscope operation. Through the mechanism of pressure broadening and mode competition, the lower order TEM.sub.00 mode remains the only transverse mode present in the optical cavity of the ring laser gyroscope.