Fig. 1. Diagram of broadband source-driven RFOG with PZT modulator

Fig. 2. Diagrams of angular velocity detection principles of broadband source-driven RFOG. (a) Overlapped clockwise and counterclockwise spectral responses in stationary state; (b) separated clockwise and counterclockwise spectral responses in rotation state

Fig. 3. Simulation result of demodulation curve

Fig. 4. Relationship between normalized demodulation slope and modulation parameters

Fig. 5. Relationship between normalized detected power and modulation parameters

Fig. 6. Theoretical ARW limited by shot noise as a function of modulation parameters

Fig. 7. Test results of resonant curves of SM-FRR driven by two different light sources

Fig. 8. Diagram of testing half-wave voltage of PZT phase modulator by self-heterodyne system

Fig. 9. Measured results of half-wave voltage of PZT phase modulator. (a) Relationship between carrier power and modulation voltage at frequency of 80 kHz; (b) relationship between half-wave voltage and modulation frequency

Fig. 10. Results of stationary gyro test and Allan deviation analysis. (a) Gyro data for 1 h in static test; (b) Allan deviation analysis result