Research/Patents/US 5363192
US 5363192

MODE-LOCKED ACTIVE GYRO SOLID STATE LASERS

Assignee

HONEYWELL INC. A CORPORATION OF DE

Filed

Jun 28, 1991

Granted

Nov 8, 1994

Location

Albuquerque NM (Kirtland AFB/Sandia)

Abstract

A ring laser gyro that minimizes and avoids the effects of lock-in and backscatter. A ring laser is pumped in a lasing cavity with a mode-locked laser. Dual counterrotating pumped pulses are precisely positioned to avoid overlay in optical elements that contribute to lock-in and backscatter. The position of the stimulated counter rotating laser beams is controlled by two methods. In the first method the pumped pulses are synchronized with a wave propagation delay line. In the second method the pumped pulses are chopped by an acousto-optic modulator shutter to precisely time the location of the pumped pulses. Both methods are can be combined to achieve a hybrid synchronized and acousto-optic modulated approach.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Feb 11, 1992

Rescinded

Apr 21, 1994

Duration

2 years, 2 months

Inventor

  • 1JEAN-CLAUDE M. DIELS

Sensitive facility: Albuquerque NM (Kirtland AFB/Sandia)

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