光纤传感中的受激布里渊散射效应

doi:10.3969/j.issn.0255-8297.2018.01.002

摘要/Abstract

摘要：

受激布里渊散射（stimulated Brillouin scattering，SBS）作为光纤中重要的非线性效应，对光纤传感系统有重要影响.在远程干涉型传感系统中，SBS增加系统相位噪声，导致传感系统探测灵敏度降低，因此研究其抑制技术十分必要.此外，SBS也是一种重要的传感手段，可用来实现分布式温度或应变测量，因而基于SBS的分布式传感技术受到广泛关注.因为基于SBS的超窄线宽激光器具有独特的性能，所以在相干传感系统中的应用前景较好.该文阐述了SBS对干涉型传感系统的影响，分析对比几种SBS抑制技术，介绍了布里渊光时域分析计的主要指标及几种提高系统性能的技术，最后介绍了超窄线宽布里渊掺铒光纤激光器的研究现状.

关键词: 受激布里渊散射, 布里渊激光器, 光纤传感, 干涉型传感, 分布式布里渊传感

Abstract:

As an important nonlinear effect in fibers, stimulated Brillouin scattering (SBS) has significant influence on fiber sensing systems. SBS increases phase noise and deteriorates detection sensitivity in a long-haul interferometric sensing system, therefore it is critical to study SBS suppression techniques. On the other hand, SBS can be used in distributed sensing of temperature and strain. Distributed sensing techniques based on SBS have attracted much research attention. Meanwhile, lasers with ultra-narrow linewidth based on SBS have wide applications in coherent sensing systems due to their unique characteristics. This paper explains the effects of SBS on interferometric sensing systems, and compares some SBS suppression techniques. Major performance criteria of a Brillouin time domain analyzer and several techniques for improvements are introduced. Finally, the development history and present situation of the ultra-narrow linewidth Brillouin/erbium fiber lasers are presented.

Key words: stimulated Brillouin scattering (SBS), distributed Brillouin sensor, fiber sensor, interferometric sensor, Brillouin laser

中图分类号:

P751.1

孟洲, 陈默, 陈伟, 胡晓阳, 王建飞. 光纤传感中的受激布里渊散射效应[J]. 应用科学学报, 2018, 36(1): 20-40.

MENG Zhou, CHEN Mo, CHEN Wei, HU Xiao-yang, WANG Jian-fei. Stimulated Brillouin Scattering in Optical Fiber Sensing Systems[J]. Journal of Applied Sciences, 2018, 36(1): 20-40.

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