Resonant mode fiber optic gyroscope resonant frequency tracker

The utility model belongs to resonant mode fiber optic gyroscope technique relates to a resonant mode fiber optic gyroscope resonant frequency tracker. Resonant mode fiber optic gyroscope resonant frequency tracker includes resonance tracking coarse adjusting system and resonance tracking fine setting system, the coarse adjusting system is trailed to resonance and resonance tracking fine setting system is continuous with the laser -driven of laser instrument respectively, and resonance tracking coarse adjusting system has the approximate reference resonant cavity of the sensitive ring of optic fibre in a length and relation of connection and the resonance tracking fine setting system. The utility model discloses a coarse adjusting of referring to the resonant cavity and carrying out optic fibre ring resonant frequency is introduced to the method of two tunnel frequency stabilizations of thickness in the system for the laser instrument falls into the scope of finely tuning the frequency stabilization circuit w