| 基于双峰谐振效应的镀金属长周期光纤光栅液体浓度传感器 |
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| 引用本文： | 顾铮,张江涛. 基于双峰谐振效应的镀金属长周期光纤光栅液体浓度传感器[J]. 光学学报, 2011, 0(3): 29-35 |
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| 作者姓名： | 顾铮 张江涛 |
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| 作者单位： | 上海理工大学理学院; |
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| 基金项目： | 国家自然科学基金(60777035); 教育部科学技术研究重点项目(208040); 上海市教委科研创新重点项目(11ZZ131); 上海市重点学科建设(S30502)资助课题 |
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| 摘 要： | 利用长周期光纤光栅(LPFG)中的双峰谐振效应,结合表面等离子体共振(SPR)传感器的高灵敏度,提出了一种新型镀金属光纤光栅液体浓度传感器.采用双包层结构模型和耦合模理论,分析r镀金属长周期光纤光栅双峰效应的谐振特性,环境折射率的传感特性以及金属膜厚对双峰LPFG灵敏度的影响.实验上制作了具有双峰效应的镀银膜长周期光纤...
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| 关 键 词： | 光纤光学 双峰谐振效应 镀金属长周期光纤光栅 液体浓度传感器 |
Metal-Coated Long-Period Fiber Grating Liquid Sensor Based on Dual-Peak Resonance |
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| Gu Zhengtian Zhang Jiangtao. Metal-Coated Long-Period Fiber Grating Liquid Sensor Based on Dual-Peak Resonance[J]. Acta Optica Sinica, 2011, 0(3): 29-35 |
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| Authors: | Gu Zhengtian Zhang Jiangtao |
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| Affiliation: | Gu Zhengtian1 Zhang Jiangtao1(College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China) |
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| Abstract: | A novel metal-coated long period fiber grating(LPFG) liquid concentration sensor is presented,which is based on dual-peak resonance combined with high sensitivity of surface plasmon resonance(SPR).On the basis of double-clad structural model and coupled-mode theory of LPFG,the dual-peak resonant characteristics and refractive index sensing properties of metal-coated LPFG are analyzed,and the influence of metal film thickness on sensitivity of dual-peak based LPFG is discussed.Experimentally,the dual-peak re... |
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| Keywords: | fiber optics dual-peak resonance metal-coated long-period fiber grating liquid sensor |
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