Research/Patents/US 5495335
US 5495335Tier 2 — Research Body

RING LASER GYROSCOPE WITH A NON-LOSS INDUCING MODE SUPPRESSION MECHANISM

Assignee

Litton Systems

Filed as: LITTON SYSTEMS, INC., A CORP. OF DE

Filed

Apr 5, 1989

Granted

Feb 27, 1996

Location

THOUSAND OAKS CA US

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 TEM00 mode remains the only transverse mode present in the optical cavity of the ring laser gyroscope.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 21, 1990

Rescinded

Feb 25, 1994

Duration

3 years, 9 months

Inventor

  • 1LAURENCE G. COTE

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records