Shuang Liu, Hanzhao Li, Lu Liu, Weiwen Qian, Yi Lin, Huilian Ma. Laser Frequency Noise Power Spectral Density Measurement Technology and Its Application to Resonant Optical Fiber Gyroscope[J]. Acta Optica Sinica, 2021, 41(13): 1306010
- Acta Optica Sinica
- Vol. 41, Issue 13, 1306010 (2021)
Fig. 1. Laser frequency noise PSD model
Fig. 2. Testing principle based on 3×3 unbalanced MZI
Fig. 3. Principle block diagram of phase demodulation
Fig. 4. PSD curve of frequency noise of semiconductor laser with linewidth of 3.1 kHz
Fig. 5. PSD curve of frequency noise of semiconductor laser with linewidth of 42 kHz
Fig. 6. PSD curve of frequency noise of NKT laser
Fig. 7. On-line measurement system of laser frequency noise before and after locking
Fig. 8. Noise PSD test results of a 3.1-kHz linewidth semiconductor laser before and after locking
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