Ming Lei, Huaiyong Yu, Yuan Fang, Yanji Wu, Zhe Feng, Lizhe Zhang. Out-of-Lock Frequency-Tracking Control of Resonant Fiber-Optic Gyro[J]. Chinese Journal of Lasers, 2020, 47(1): 0106002
- Chinese Journal of Lasers
- Vol. 47, Issue 1, 0106002 (2020)
Fig. 1. Structural diagram of RFOG system
Fig. 2. Change of resonant signal in frequency sweep process
Fig. 3. Corresponding relation between output optical power and driving current of laser
Fig. 4. Out-of-lock frequency-tracking control scheme of RFOG based on temperature closed-loop feedback
Fig. 5. Division of FPGA digital working region in out-of-lock control scheme
Fig. 6. Photograph of RFOG prototype
Fig. 7. Temperature drift of resonator affected by environment
Fig. 8. Output comparison of RFOG at room temperature. (a) Before out-of-lock control; (b) after out-of-lock control
Fig. 9. Performance test of RFOG at room temperature. (a) Photograph of testing; (b) result of 1-h static test
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