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Proceedings Paper

Signal-pump power matching in the forward pumped fiber Raman amplifier of the remote interferometric optical fiber sensing system with phase modulation
Author(s): Yichi Zhang; Zaian Ren; Xianrui Shi; Zhou Meng
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Paper Abstract

For the remote interferometric optical fiber sensing system with forward pumped fiber Raman amplifier (FFRA), the phase noise is one of the most significant factors that affect its performance. Several factors have impacts on the phase noise of the system, including intensity noise and spectral broadening. Phase modulation is adopted to suppress the intensity noise induced by stimulated Brillouin scattering (SBS), which can introduce some additional phase noise into the system due to the spectral broadening in the meantime. It is observed in the study that the minimal phase noise level that the system can get with the phase modulation conducted is related to the input signal power, while an optimal input signal is existent with a specific Raman pump power to get the lowest phase noise level. The research results provide a guidance when determining the pump power of the forward pumped fiber Raman amplifier in the remote interferometric optical fiber sensing system with phase modulation.

Paper Details

Date Published: 12 March 2020
PDF: 8 pages
Proc. SPIE 11436, 2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 114360J (12 March 2020); doi: 10.1117/12.2548532
Show Author Affiliations
Yichi Zhang, The Artillery and Anti-aircraft College (China)
Zaian Ren, The Artillery and Anti-aircraft College (China)
Xianrui Shi, The Artillery and Anti-Aircarft College (China)
Zhou Meng, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 11436:
2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Xuping Zhang; Hai Xiao, Editor(s)

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