Junchao GAO, Junjie CHEN, Liuxian YE, Bing CHENG, Bin WU, Helin WANG, Xiaolong WANG, Qiang LIN. Research on Fiber Raman Laser Source for Mobile Quantum Gravimeter[J]. Acta Photonica Sinica, 2024, 53(8): 0814003

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- Acta Photonica Sinica
- Vol. 53, Issue 8, 0814003 (2024)

Fig. 1. Low phase noise and narrow linewidth Raman fiber laser system

Fig. 2. Noise model of optical phase-locked loop in the narrow linewidth Raman fiber laser

Fig. 3. The influence of Raman phase noise on the sensitivity of gravimeter under different T and τ value

Fig. 4. Power spectral density of phase noise of Raman beat signal. Illustration : beat signal diagram

Fig. 5. The gravity sensitivity limit and total phase noise at different beat optical power ratios

Fig. 6. The phase noise power spectral density of the laser system with different 7G signal sources and different 7G sources is analyzed.

Fig. 7. Phase noise spectral density of Raman laser system and different devices in the system.

Fig. 8. Phase noise and gravity sensitivity in different frequency bands

Fig. 9. Stability of phase noise and gravity sensitivity of Raman fiber laser

Fig. 10. Frequency stability of beat light in Raman laser system

Fig. 11. Allen variance of beat frequency stability of Raman laser system under different integration time
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Table 1. Noise transfer function of each device
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Table 2. Noise power spectral density of each device

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