Meng Kong, Yanting Lu, Dong Lin, Zhaoying Zheng, Changwei Li, Xiaoming Zhu, Sijiong Zhang. Digital Laser Frequency Stabilization with Reference to An Optical Frequency Comb[J]. Acta Optica Sinica, 2021, 41(16): 1614001
- Acta Optica Sinica
- Vol. 41, Issue 16, 1614001 (2021)
Fig. 1. Schematic diagram of general structure of laser frequency stabilization system
Fig. 2. Schematic diagram of optical path of heterodyne interference
Fig. 3. Schematic diagram of frequency discrimination circuit structure
Fig. 4. Schematic diagram of high frequency to voltage conversion circuit structure
Fig. 5. Timing logic diagram of high frequency to voltage conversion circuit
Fig. 6. Schematic diagram of feedback control module
Fig. 7. Flow chart of feedback control
Fig. 8. Spectrum of beat signal
Fig. 9. Frequency drift of unlocked laser within 800 s
Fig. 10. Frequency drift of locked laser within 800 s
Fig. 11. Long-term drift of laser frequency within 1.6 h and its Allan deviation
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