| 基于倾斜光纤光栅及其表面等离子效应的折射率传感比较研究(英文) |
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| 引用本文： | 蒋奇,胡德波.基于倾斜光纤光栅及其表面等离子效应的折射率传感比较研究(英文)[J].激光与光电子学进展,2012(8):81-84. |
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| 作者姓名： | 蒋奇 胡德波 |
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| 作者单位： | 山东大学控制科学与工程学院 |
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| 基金项目： | 教育部新世纪优秀人才培养计划(NCET-10-0541);国家自然科学基金(51079080);山东大学自主创新基金(2012ZD015)资助课题 |
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| 摘 要： | 介绍了倾斜光纤光栅作为折射率传感器的测量原理,给出它的倾斜角8°与中心波长1550nm的反射谱与透射谱,分析了具有表面等离子的倾斜光纤光栅传感机理。为验证折射率传感的可能性与优点,进行了蔗糖浓度溶液的裸倾斜光纤光栅与镀金的倾斜光纤光栅的折射率测量分析,证明镀金后的表面等离子效应倾斜光纤光栅折射率传感器其灵敏度大大增加。
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| 关 键 词： | 光纤光学 倾斜光纤光栅 表面等离子共振 折射率 |
A Comparative Study of Refractive Index Sensors Based on Bare TFBG and SPR-TFBG |
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| Jiang Qi Hu Debo.A Comparative Study of Refractive Index Sensors Based on Bare TFBG and SPR-TFBG[J].Laser & Optoelectronics Progress,2012(8):81-84. |
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| Authors: | Jiang Qi Hu Debo |
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| Affiliation: | Jiang Qi Hu Debo(School of Control Science and Engineering,Shandong University,Jinan,Shandong 250061,China) |
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| Abstract: | The refractive index sensing principle of tilted fiber Bragg grating(TFBG) and tilted fiber Bragg grating with surface plasmon resonance(SPR-TFBG) is provided.The transmission spectrum and reflection spectrum of TFBG with 8° tilt angle and 1550 nm central wavelength are given.After that,refractive index sensing experiments are carried out using bare and gold deposited TFBG,respectively.The results prove that the deposited gold layer improves the refractive index sensitivity dramatically. |
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| Keywords: | fiber optics tilted fiber Bragg grating surface plasmon resonance refractive index |
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