Jinding Zhu, Linghao Chen, Liming Zhou, Weimin Liu. Influence of Laser Frequency Stability on Distributed Brillouin Sensing System[J]. Laser & Optoelectronics Progress, 2019, 56(17): 170624
- Laser & Optoelectronics Progress
- Vol. 56, Issue 17, 170624 (2019)
Fig. 1. Frequency difference between multi-pulse Brillouin signal and local light caused by optical source frequency instability
Fig. 2. Simulation result of Brillouin center frequency deviation distribution due to frequency fluctuation of laser
Fig. 3. Measurement setup for frequency stability of optical source
Fig. 4. Frequency deviation of laser ITLA
Fig. 5. Setup of BOTDR sensing experiment
Fig. 6. Brillouin frequency spectra of sensing fiber at different positions
Fig. 7. Frequency deviation of laser DL-BF10
Fig. 8. Long-distance sensing experimental results of BOTDR system based on laser DL-BF10
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