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本文介绍了一种单模-多模-单模结构的本征型法布里-珀罗传感器, 通过对传感器中渐变型多模光纤的光场分布进行分析和仿真, 实现了传感器腔长的优化设计, 大大降低了插入损耗, 增强了传感器复用能力. 实验证明串联复用中的单个传感器的优化后的插入损耗从4 dB减少至0.83 dB, 多个级联复用时损耗变化平缓, 温度测试结果表明级联的12个传感器均具有较好的灵敏度和线性度.
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关键词:
- 光纤传感器 /
- 本征型法布里珀罗传感器 /
- 分布式传感
This paper introduces a kind of single mode-multimode-single mode intrinsic Fabry-Perot interferometer (SMS-IFPI). We optimize the sensing length of the graded-index multimode fiber (GI-MMF), insertion loss, and multiplexing capability through the analysis and simulation of the optical field distribution in the GI-MMF. Experiment proves that the insertion loss of a single sensing unit from the optimized cascade SMS-IFPI may be decreased from 4 dB to 0.83 dB. Testing the response characteristics of SMS-IFPI temperature sensors in the distribution under the condition of different temperature, the experimental results show that each SMS-IFPI can have better sensitivity and linearity.-
Keywords:
- fiber opticsensors /
- intrinsic Fabry-Pé /
- rot interferometer
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[1] Chen W, Meng Z, Zhou H J, Luo H 2012 Acta Phys. Sin. 61 184210 (in Chinese) [陈伟, 孟州, 周会娟, 罗洪 2012 61 184210]
[2] Rao Y J, Xu B, Ran Z L, Gong Y 2010 Chin. Phys. Lett. 27 024208
[3] Zhu J L, Wang M, Cai D Y, Jia S 2014 Acta Opt. Sin. 34 0428002 (in Chinese) [朱佳利, 王鸣, 蔡东艳, 贾晟 2014 光学学报 34 0428002]
[4] Liang S, Zhang C X, Lin B, Lin W T, Li Q, Zhang X, Li L J 2010 Chin. Phys. B 19 124217
[5] Ma H Q, Zhao J L, Wu L A 2009 Chin. Phys. B 18 1674
[6] Deng M, Rao Y J, Zhu T, Duan D W 2009 Acta Opt. Sin. 29 1790 (in Chinese) [邓明, 饶云江, 朱涛, 段德稳 2009 光学学报 29 1790]
[7] Manuel R M, Shlyagin M G, Miridonov S V, Meyer J 2012 IEEE Sens. J. 12 124
[8] Rao Y J, Li H, Zhu T, Deng M 2009 Chin. J. Lasers 36 1484 (in Chinese) [饶云江，黎宏，朱涛，邓明 2009 中国激光 36 1484]
[9] Wang W Y, Wen J X, Pang F F, Chen N, Wang T Y 2012 Chin. J. Lasers 39 1005001 (in Chinese) [王文辕, 文建湘, 庞拂飞, 陈娜, 王廷云 2012 中国激光 39 1005001]
[10] Gong Y, Zhou Y, Rao Y J, Zhao T, Wu Y, Ran Z L 2011 Acta Phys. Sin. 60 064202 (in Chinese) [龚元, 郭宇, 饶云江, 赵天, 吴宇, 冉曾令 2011 60 064202]
[11] Lee C E, Taylor H F 1988 Electron. Lett. 2 48
[12] Rao Y J, Zhu T, Yang X C, Duan D W 2007 Opt. Lett. 32 2662
[13] Huang Z Y, Zhu Y Z, Chen Y P, Wang A B 2005 IEEE Photon. Technol. Lett. 17 2403
[14] Shen F B, Wang A B 2005 Appl. Opt. 44 5206
[15] Ma C, Dong B, Lally E M, Wang A B 2012 Lightwave Technol. 30 2281
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