Resonant optical gyro is a new high-precision angular rotation velocity sensor based on Sagnac effect

the angular rotation velocity is measured through the detection of the resonant frequency difference between the clockwise and the counter-clockwise light path in the resonator.It is a key process to the minimization of the gyro that light source realize the minimization.Based on the modulation narrow line-width and minimization of light source of the semiconductor

the frequency tracking and locking for the resonator valley is analyzed

the frequency tracking control of the gyro is achieved.