Ring laser gyroscope utilizing phase detector for minimizing...

Details Ring laser gyroscope utilizing phase detector for minimizing... Ring laser gyroscope utilizing phase detector for minimizing...

H - Electricity

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H01S 3/083 (2006.01) G01C 19/64 (2006.01) G01C 19/66 (2006.01)

Patent

CA 1183591

Title of the Invention: RING LASER GYROSCOPE UTILIZING PHASE DETECTOR FOR MINIMIZING BEAM LOCK-IN Inventors: James H. Simpson and James G. Koper ABSTRACT OF THE DISCLOSURE Two of the three reflecting mirrors in a ring laser gyroscope are provided with transducers permitting the mirrors to control the ring laser gyroscope laser path. The third mirror is partially reflecting to permit some cavity radiation to exit. The radiation includes winking signal components which are related to laser beam lock-in. By controlling the phase difference between the signal components, minimum lock-in may be achieved.

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