| 腐蚀包层法调谐长周期光纤光栅及增强折射率敏感特性的研究 |
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| 引用本文： | 关寿华,郑建洲,于清旭. 腐蚀包层法调谐长周期光纤光栅及增强折射率敏感特性的研究[J]. 大连民族学院学报, 2009, 11(5): 430-433 |
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| 作者姓名： | 关寿华 郑建洲 于清旭 |
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| 作者单位： | 1. 大连理工大学,物理与光电工程学院,辽宁,大连,116024;大连民族学院,理学院,辽宁,大连,116605
2. 大连理工大学,物理与光电工程学院,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金海外青年合作基金资助项目 |
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| 摘 要： | 从理论与实验上研究了腐蚀包层法增强长周期光纤光栅环境折射率敏感特性和调谐透射谱的机制,结果表明,随着光栅区包层半径的减小,各阶包层模谐振波长向长波方向移动,环境折射率敏感特性随之显著增强。在用HF酸溶液腐蚀光栅区包层的实验测试中,先后观察到4个损耗峰,其中第2个损耗峰在包层半径减小约4.11μm、谐振波长向长波方向移动了约117.19 nm时,环境折射率传感特性增强了约3倍,这为制备高精度液体浓度/折射率传感器提供了重要依据。
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| 关 键 词： | 长周期光纤光栅 折射率传感特性 腐蚀 调谐 |
Research on Tuning LPFG and Increasing Refractive Index Sensitivity Characteristics by Etching Cladding |
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| GUAN Shou-hua,ZHENG Jian-zhou,YU Qing-xu. Research on Tuning LPFG and Increasing Refractive Index Sensitivity Characteristics by Etching Cladding[J]. Journal of Dalian Nationalities University, 2009, 11(5): 430-433 |
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| Authors: | GUAN Shou-hua ZHENG Jian-zhou YU Qing-xu |
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| Affiliation: | GUAN Shou-hua1,2,ZHENG Jian-zhou1,YU Qing-xu1 (1.School of Physics , Optoelectronic Technology,Dalian University of Technology,Dalian Liaoning 116024,China,2.College of Science,Dalian Nationalities University,Dalian Liaoning 116605,China) |
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| Abstract: | A mechanism for increasing the ambient refractive-index sensitivity characteristics of the long-period fibre grating(LPFG) and tuning the transmission spectrum by etching cladding was researched theoretically and experimentally.The result showed that the resonant wavelength of each order of cladding mode moved towards the long wave and the ambient refractive-index sensitivity characteristics increased significantly as the cladding radius of the grating zone decreased.Four loss peaks were observed in the exp... |
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| Keywords: | long-period fibre grating(LPFG) refractive index sensitivity characteristics etching tuning |
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