| 1.66 μm和 1.55 μm光源对长距离光纤拉曼温度传感器测量时间影响的理论对比 |
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| 引用本文： | 张磊,冯雪,张巍,刘小明.1.66 μm和 1.55 μm光源对长距离光纤拉曼温度传感器测量时间影响的理论对比[J].光子学报,2014,38(11):2805-2809. |
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| 作者姓名： | 张磊 冯雪 张巍 刘小明 |
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| 作者单位： | (清华大学 电子工程系,北京 100084) |
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| 摘 要： | 通过理论分析,在综合考虑长距离光纤拉曼温度传感器中各光学器件波长相关特性的基础上,比较了1.66 μm和1.55 μm光源对传感器测量时间的影响.计算结果表明,由于各光学器件在1.5 μm波段的高性能和最大允许入纤脉冲峰值功率的增加,采用1.66 μm光源的光纤拉曼温度传感器,最高可获得约1.94倍的背向反斯托克斯信号.在相同空间分辨率和温度分辨率的情况下,测量时间可以降低约3/4.
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| 关 键 词： | 分布式温度传感器 光时域反射 光源 拉曼散射 |
| 收稿时间： | 2008-11-10 |
Numerical Comparison on the Measurement Time of Long Range Fiber Raman Distributed Temperature Sensors Operating at 1.66 μm and 1.55 μm |
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| ZHANG Lei,FENG Xue,ZHANG Wei,LIU Xiao-ming.Numerical Comparison on the Measurement Time of Long Range Fiber Raman Distributed Temperature Sensors Operating at 1.66 μm and 1.55 μm[J].Acta Photonica Sinica,2014,38(11):2805-2809. |
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| Authors: | ZHANG Lei FENG Xue ZHANG Wei LIU Xiao-ming |
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| Institution: | (Department Electronic Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The measurement time of fiber Raman distributed temperature sensors (FRDTSs) using 1.66 μm and 1.55 μm light sources is compared numerically.According to the calculation results,the intensity of the received anti-stokes backscattered signal can be increased about 1.94 folds in the FRDTSs based on 1.66 μm light sources because of the advanced performances of optical devices at 1.5 μm band and the increase of the maximum launched light power.The measurement time can be saved by three quarters with the same spatial resolution and temperature resolution. |
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| Keywords: | Distributed temperature sensor Optical time domain reflectometry Light soucre Raman scattering |
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