| 空芯带隙型光子晶体光纤整体空气孔包层导光特性研究 |
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| 引用本文： | 郭夏锐,杨德兴.空芯带隙型光子晶体光纤整体空气孔包层导光特性研究[J].应用光学,2011,32(4):744-748. |
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| 作者姓名： | 郭夏锐 杨德兴 |
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| 作者单位： | 1. 中国空间技术研究院北京空间机电研究所, 北京100190;
2. 西北工业大学理学院, 陕西西安710072 |
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| 摘 要： | 传统光纤包层中仅存在泄漏的倏逝波，能量较小，不利于包层传感的应用。增大包层中的能量，实现整体包层导光是提高光纤传感灵敏度的有效途径。从理论上分析了利用空芯带隙型光子晶体光纤(HC-PCF)包层进行导光的机理。在实验上选用带隙外的冷光源和激光对一种典型结构的HC-PCF进行了空气孔包层的导光实验，并利用折射率引导型光子晶体光纤和单模光纤进行对比实验。结果表明，带隙范围外光波在HC-PCF中传输时将不受禁带效应的约束泄露至包层中重新分布。包层中SiO2与空气孔的周期型结构将光波约束在高折射率介质中，实现HC-PCF整体空气孔包层中光波的稳定传输。PBG-PCF包层的整体导光在传感上有提高灵敏度的潜在价值。
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| 关 键 词： | 光纤光学 光子晶体光纤 光子带隙 光纤传感 倏逝波 |
Propagating light with the full cladding of hollow-core photonic crystal fiber |
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| GUO Xia-rui,YANG De-xing.Propagating light with the full cladding of hollow-core photonic crystal fiber[J].Journal of Applied Optics,2011,32(4):744-748. |
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| Authors: | GUO Xia-rui YANG De-xing |
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| Institution: | 1. Beijing Institute of Space Mechanics and Electricity, China Academy of Space Technology, Beijing 100190,China; 2. School of Science, Northwestern Polytechnical University, Xi-an 710072, China |
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| Abstract: | Conventional fiber cladding only has leaking evanescent wave with low energy,which prevents the application of cladding sensing.Guiding light in the full cladding is expected to improve the sensitivity of hollow-core photonic crystal fiber(HC-PCF) application for material sensing.An approach to increase the energy transmitting in the cladding was theoretical analyzed.The light guidance experiments of air-hole cladding of HC-PCF were carried out by using a cold light source and a laser.The contrast experimen... |
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| Keywords: | fiber optics photonic crystal fiber photonic band gap fiber sensing evanescent wave |
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