| 周豫,周雪芳,樊冰,李曾阳,胡淼,毕美华,杨国伟,王天枢.基于Vernier效应的光纤温度传感特性研究[J].光电子激光,2020,31(4):345~350 |
| 基于Vernier效应的光纤温度传感特性研究 |
| Research of fiber temperature sensing characteristics based on Vernier-effect |
| 投稿时间：2020-01-07 |
| DOI： |
| 中文关键词: 法布里-珀罗干涉仪 光纤Sagnac干涉仪 Vernier效应 温度传感 |
| 英文关键词:Fabry-Perot Interferometer fiber Sagnac interferometer Vernier-effect tempe rature sensing |
| 基金项目:浙江省科技计划公益项目(LGG19F050001)资助项目和国家自然科学基金项 目(601705055)资助项目 (1.杭州电子科技大学 通信工程学院,杭州 310018； 2.长春理工大学 空间光电技术国家 有地方联合工程研究中心,长春 130022) |
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| 中文摘要: |
| 近年来研究者借鉴游标卡尺和气压计中的游标(V ernier)结构,在多波长光纤激光传感器中使用双 干涉仪级联的方式产生Vernier效应,用来提升传感器的灵敏度。本文通过仿真与实验测试 ,对光纤Sagnac 干涉仪(FSI)和光纤法布里-佩罗干涉仪(FFPI)级联产生的Vernier效应进行了研究,设计 了两种不同结构 的温度传感器,研究了级联结构对传感器温度灵敏度的影响并进行了实验测试。结果表明, 温度灵敏度从 －1.7 nm/℃(FSI温度传感灵敏度)和0.008 nm/℃(FPI温度传感灵 敏度)分别提高到10.28 nm/℃和10.64 nm/℃ , 基于Vernier效应,温度传感器的灵敏度提升超过6倍,实验结果与理论分析基本一致(10.82 nm/℃)。 |
| 英文摘要: |
| In recent years,researchers have referred to the Vernier structure in calipers and barometers.In the multi-wavelength fiber laser sensor,the dual interferometer cascade is used to generate the Vernier effect,which is used to improve the sensitivity of the sensor.In this paper,through simulation and experimental testing,the Vernier effect generated by the cascade of fiber Sagnac interferometer (FSI) and fiber Fabry-Perot interferometer (FFPI) is studied Two kinds of temperature sensors with different structures wer e designed,and the effects of the cascade structure on the temperature sensitivity of the sensors were studied thr ough experimental tests.The results show that the temperature sensitivity is increased from －1.7nm/℃ (FSI tempe rature sensing sensitivity) and 0.008nm/℃ (FPI temperature sensing sensitivity) to 10.28nm/℃ and 10.64nm/ ℃,respectively.Based on the Vernier effect,the sensitivity of the temperature sensor is increased by more t han 6times.The experimental results are basically consistent with the theoretical analysis (10.82nm/℃). |
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