| 基于光传输矩阵方法对EFFP传感器的参数优化研究 |
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| 引用本文： | 陈潇潇,赵天,龚元. 基于光传输矩阵方法对EFFP传感器的参数优化研究[J]. 光学与光电技术, 2013, 11(2): 38-42 |
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| 作者姓名： | 陈潇潇 赵天 龚元 |
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| 作者单位： | 1. 中国测试技术研究院,成都四川,610066
2. 电子科技大学光纤传感与通信教育部重点实验室,成都四川,611731 |
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| 摘 要： | 为研究光纤法珀传感器中法珀腔结构参数对其条纹对比度的影响,基于光传输矩阵方法,建立了描述非本征型光纤法珀干涉结构中光束传播特性的理论模型。以基于化学腐蚀渐变多模折射率光纤方法制作而成的光纤法珀传感器为例,进行了数值模拟。由模拟结果可以得出,腔长为40μm、曲率半径在85～115μm范围内可以获得较高的条纹对比度。其结果表明,通过优化法珀腔的腔长和形状可以改善光纤法珀传感器反射光谱的条纹对比度。
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| 关 键 词： | 光纤传感器 渐变多模折射率光纤 法珀干涉仪 光传输矩阵 |
Parameter Optimization of Fiber-Optic Extrinsic Fabry-Perot Sensors Based on Ray-Transfer-Matrix Method |
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| CHEN Xiao-xiao,ZHAO Tian,GONG Yuan. Parameter Optimization of Fiber-Optic Extrinsic Fabry-Perot Sensors Based on Ray-Transfer-Matrix Method[J]. optics&optoelectronic technology, 2013, 11(2): 38-42 |
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| Authors: | CHEN Xiao-xiao ZHAO Tian GONG Yuan |
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| Affiliation: | 1 National Institute of Measurement and Testing Technology,Chengdu 610021,China; 2 Key Lab of Optical Fiber Sensing ＆ Communications,Ministry of Education, University of Electronic Science ＆ Technology of China,Chengdu 611731,China) |
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| Abstract: | A theoretical model based on the ray-transfer-matrix method is presented for describing the light propagation in the extrinsic fiber-optic Fabry-Perot（EFFP） sensor fabricated by chemical etching and fusion splicing.It is indicated by the numerical simulations that the maximum fringe contrast of the reflective spectrum of the EFFP sensor can be obtained by optimizing the length（L0=40 μm） and the shape of the cavity（ρ1 between 85 μm and 115 μm）.The optimal values or ranges of the geometric parameters of the cavity are determined,which is important for enhancing the performance of EFFP sensors by experiment. |
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| Keywords: | optical fiber sensor graded-index multimode fiber Fabry-Pérot interferometer ray-transfer-matrix |
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