Pathlength controller for ring laser gyroscope

Details Pathlength controller for ring laser gyroscope Pathlength controller for ring laser gyroscope

1980-04-28

1985-12-31

Punter, William H.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1964

Patent

active

045617805

ABSTRACT:
A pathlength controller for a ring laser gyroscope with a modulated mirror is disclosed where a voltage bias is applied to the modulation signal to prevent starting the ring laser gyroscope at a point where it operates with two equal longitudinal modes.

REFERENCES:
patent: 3048336 (1972-08-01), Ritzenthaler
patent: 3902053 (1975-08-01), Figueroa
patent: 4160184 (1979-07-01), Ljung
patent: 4267478 (1981-05-01), Ljung et al.
Shotton et al., "An Electronic Servocontrol for Stabilized Lasers & Similar Applications", National Physical Laboratory, Teddington, England, NPL Report QU 28, 1-1975.

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