| 全同光纤布拉格光栅单纤复用能力的研究(英文) |
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| 引用本文： | 刘建胜,张晶,李昕.全同光纤布拉格光栅单纤复用能力的研究(英文)[J].中国航空学报,2011,24(5):607-612. |
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| 作者姓名： | 刘建胜 张晶 李昕 |
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| 作者单位： | 北京航空航天大学电子信息工程学院; |
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| 基金项目： | National Natural Science Foundation of China(10376001) |
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| 摘 要： | 本文从理论上研究和分析了一种基于OTDR和TDM技术的新型光纤布拉格光栅复用方法的复用能力。这种方法可以在同一根光纤上复用成百个全同的低反射率布拉格光栅,从而使布拉格光栅传感器在航空航天健康监测领域得到更广泛的应用。分析表明,当布拉格光栅的反射率足够低时,系统的复用能力可以大大提高。因此,基于这种复用方法,可以实现廉价的大规模分布传感系统。在评价这种系统的复用能力时,我们第一次提出应该考虑光栅间多次反射光的干涉效应的影响。
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| 关 键 词： | 布拉格光栅 复用 低反射率 多次反射 干涉效应 |
| 收稿时间： | 2010-10-14; |
Study on Multiplexing Ability of Identical Fiber Bragg Gratings in a Single Fiber |
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| LIU Jiansheng,ZHANG Jing,LI Xin,ZHENG Zheng School of Electronics , Information Engineering,Beihang University,Beijing ,China.Study on Multiplexing Ability of Identical Fiber Bragg Gratings in a Single Fiber[J].Chinese Journal of Aeronautics,2011,24(5):607-612. |
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| Authors: | LIU Jiansheng ZHANG Jing LI Xin ZHENG Zheng School of Electronics Information Engineering Beihang University Beijing China |
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| Institution: | LIU Jiansheng*,ZHANG Jing,LI Xin,ZHENG Zheng School of Electronics and Information Engineering,Beihang University,Beijing 100191,China |
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| Abstract: | The multiplexing ability of a novel multiplexing fiber Bragg grating (FBG) method based on Optical Time Domain Reflecto meter (OTDR) and Time Division Multiplexing TDM technologies has been theoretically analyzed and studied. This method permits the interrogation of hundreds of identical FBGs with low reflectivity in a single fiber, making the FBG sensors more applicable in the aerospace health monitoring engineering. The analysis shows that the multiplexing ability can be greatly improved if the FBG reflec... |
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| Keywords: | Bragg gratings multiplexing low reflectivity multi-reflection interference effect |
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