| 光纤法布里-珀罗传感器的模式分析 |
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| 引用本文： | 丁兆昆,徐俊山,宋宁.光纤法布里-珀罗传感器的模式分析[J].信息技术,2009(7):66-68. |
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| 作者姓名： | 丁兆昆 徐俊山 宋宁 |
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| 作者单位： | 上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海,200240 |
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| 摘 要： | 利用模式理论分析白光光源条件下的光纤法布里-珀罗传感器的干涉谱的相位变化,推导得到反射光波在法珀腔内传播时由光程差(即两倍法珀腔腔长)和进入导入光纤时的模式耦合引起的相位变化对干涉谱的影响,并且用模式理论的方法分析了传感器法珀腔两个端面未完全平行时对其干涉谱的影响.
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| 关 键 词： | 法布里-珀罗传感器 模式分析 耦合相位变化 干涉谱 |
Analysis on model theory of optical fiber Fabry-Perot sensor |
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| DING Zhao-kun,XU Jun-shan,SONG Ning.Analysis on model theory of optical fiber Fabry-Perot sensor[J].Information Technology,2009(7):66-68. |
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| Authors: | DING Zhao-kun XU Jun-shan SONG Ning |
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| Affiliation: | National Key Laboratory for Area Fiber Communication Net and New Fiber Communication Systems;Shanghai Jiaotong University;Shanghai 200240;China |
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| Abstract: | Model theory of optical fiber Fabry-Perot sensor with the white-light source is analyzed in this paper.The model analysis gives out that interference signal spectrum is influenced not only by the light propagation length in free space of cavity,but also by the light coupling from free space back to lead-in/out single mode fiber(SMF).In addition,the imperfections such as uneven fiber end-faces are analyzed by the model theory. |
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| Keywords: | Fabry-Perot sensor model analysis coupling-induced phase shift interference signal spectrum |
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