Ring laser gyro frame design resistant to thermal gradient effec

Details Ring laser gyro frame design resistant to thermal gradient effec Ring laser gyro frame design resistant to thermal gradient effec

1987-08-21

1989-09-19

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, G01C 1964

Patent

active

048675679

ABSTRACT:
A ring laser gyro is shown which generates two or more laser beams that travel through a gain medium. The laser produces two bias components, one due to Langmuir flow and the second due to a thermal gradient. The invention uses a symmetrically mounted restriction in the gain portion of the laser passageways to control the flow of the gain medium. The non-gain portion of the passageways is also enlarged to reduce the effects of a thermal gradient on the flow of the medium.

REFERENCES:
patent: 4190364 (1980-02-01), Ljung et al.
patent: 4705398 (1987-11-01), Lim et al.

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