Yifei Qi, Shengtao Lin, Xingyu Bao, Longqun Ni, Pan Wang, Jiaojiao Zhang, Zinan Wang. Random Fiber Laser Dynamic Sensing Based on Rapid Spectral Detection[J]. Laser & Optoelectronics Progress, 2023, 60(11): 1106027
- Laser & Optoelectronics Progress
- Vol. 60, Issue 11, 1106027 (2023)
Fig. 1. Simulation result.(a) Simulation spectrum; (b) time-frequency diagram disturbed by triangular waves
Fig. 2. Experimental setup for random fiber laser dynamic sensing based on rapid spectral detection
Fig. 3. Spectrum of random fiber laser feedback
Fig. 4. Spectrum of Raman random fiber laser coupled with NLL
Fig. 5. Time-frequency domain demodulation result. (a) Disturbed time-frequency diagram; (b) comparison between noised spectrum and denoised spectrum
Fig. 6. Flow chart of denoising convolutional neural networks
Fig. 7. Experiment results. (a)(b) sine wave; (c)(d) chirp wave; (e)(f) triangle wave
Fig. 8. Frequency spectrum of the demodulated triangle signal and its preset stimulated signal
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