Nonlinear effects in φ-OTDR system

Yinghao Jiang; Tuanwei Xu; Lilong Ma; Kai Cao; Yaning Xie; Jing Zhang; Dimin Deng; Yuliang Liu

doi:10.1117/12.2642254

19 December 2022 Nonlinear effects in φ-OTDR system

Yinghao Jiang, Tuanwei Xu, Lilong Ma, Kai Cao, Yaning Xie, Jing Zhang, Dimin Deng, Yuliang Liu

Proceedings Volume 12321, Advanced Sensor Systems and Applications XII; 1232110 (2022) https://doi.org/10.1117/12.2642254
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

Recent trends in long distance phase-sensitive optical time-domain reflectometer (φ-OTDR) have led to a proliferation of studies on nonlinear effects. We explores stimulated Raman scattering (SRS), stimulated Brillouin scattering (SBS), selfphase modulation (SPM) and modulation instability (MI) in the φ-OTDR system both theoretically and experimentally. Results show that the analytical model of above nonlinear effects have significance for practice reference, except for MI in the case of long distance. The depletion of power and amplified spontaneous emission power density as the most effective consequences of modulation instability must be taken into account. Compared with theoretical analysis, numerical simulation provides more accurate results, and experiments support the existence of unreported intrinsic spectral component of MI around the signal.

Citation Download Citation

Yinghao Jiang, Tuanwei Xu, Lilong Ma, Kai Cao, Yaning Xie, Jing Zhang, Dimin Deng, and Yuliang Liu "Nonlinear effects in φ-OTDR system", Proc. SPIE 12321, Advanced Sensor Systems and Applications XII, 1232110 (19 December 2022); https://doi.org/10.1117/12.2642254

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