Xu-sheng XIA, Xiang-long CAI, Zhong-hui LI, Chen-cheng SHEN, Wan-fa LIU, Yu-qi JIN, Feng-ting SANG, Jing-wei GUO. Algorithm for Broadband Brillouin Spectra Analysis Based on Thomae's Function[J]. Acta Photonica Sinica, 2020, 49(6): 0630003
- Acta Photonica Sinica
- Vol. 49, Issue 6, 0630003 (2020)
Fig. 1. Typical images of Brillouin spectra that pumped with narrow linewidth laser and broadband laser, and the corresponding fringe patterns
Fig. 2. Curves of Eq. (12) and Thomae's function
Fig. 3. Experimental configuration
Fig. 4. The synthesis of test data
Fig. 5. Typical ∑|F n|to b trial curve
Fig. 6. The f (x ) recovered from different b trial
Fig. 7. The accuracies when white Gaussian noise is mixed with the original signal, the accuracies for the same signals when a Gaussian filter is applied during processing, and the corresponding frequency charts of these signals
Fig. 8. Experimental configuration to measure the ratio of pump light to SBS light
Fig. 9. The accuracies when ratio of pump light to SBS light is not 1
Fig. 10. The stability of pump laser and SBS singal of 200 laser pulses
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