Ring laser gyroscope cavity length control apparatus and method

Details Ring laser gyroscope cavity length control apparatus and method Ring laser gyroscope cavity length control apparatus and method

G - Physics

01

C

345/10

G01C 19/64 (2006.01) G01C 19/66 (2006.01)

Patent

CA 1293318

RING LASER GYROSCOPE CAVITY LENGTH CONTROL APPARATUS AND METHOD ABSTRACT OF THE DISCLOSURE An apparatus and method for path length control for a laser gyro using two external gain cells and the shifted gain spectra of two neon isotopes. The laser cavity is stabilized by detecting the difference in the amplification ratebetween the two gain cells that are traversed by two rays. Absorption cells may be used to replace the gain cells.

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