Title:
DEVICE FOR MEASURING DIFFERENCE OF NATURAL RESONANCE FREQUENCY OF OPTICAL RESONATOR
Document Type and Number:
Japanese Patent JPS6061614
Kind Code:
A
Abstract:
A laser gyroscope incorporates a toroidal resonator (36). Excitation waves are produced by a laser (10). The intensity of the laser beam (12) is modulated by a laser current modulator (14). The modulation frequency f1 is controlled in such a way that side bands f0-f1 and f0+f1 are forced to follow the resonance frequencies of the toroidal resonator (36) for left-handed and right-handed light if the resonance frequency f0 splits as a consequence of an inertial angle velocity due to the Sagnac effect. The modulation frequency then provides the measure of the angular velocity.
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Inventors:
BUARUTAA BERUNARUTO
KAARUUHAINTSU SHIYUBUARUTSU
KAARUUHAINTSU SHIYUBUARUTSU
Application Number:
JP17423284A
Publication Date:
April 09, 1985
Filing Date:
August 23, 1984
Export Citation:
Assignee:
BODENSEEWERK GERAETETECH
International Classes:
G01C19/00; G01C19/64; G01C19/72; (IPC1-7): G01C19/64; G01P9/00
Attorney, Agent or Firm:
Toshio Yano