Optical signal-to-noise enhancement of a single-ended fiber-optic spontaneous Brillouin intensity based distributed temperature sensor

机译：基于单端光纤自发布里渊强度的分布式温度传感器的光信噪增强

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An optical preamplifier system consisting of a 27dB-gain erbium-doped fiber amplifier, a three-port circulator and a 47GHz bandwidth in-fiber grating has improved receiver sensitivity and consequently sensor range of a spontaneous Brillouin-based fiber-optic distributed temperature single-ended sensor. Optical signal-to-noise has improved by 17dB. Using this system and operating at 1533nm, a sensor with a range of 23km, spatial resolution of 1.8m, measurement time of 9 minutes and temperature resolution of 6K was implemented. The temperature resolution was attributed to contamination of the backscattered spontaneous Brillouin signal by the residual Rayleigh signal after optical filtering. The optical signal-to-noise is supported theoretically by considering associated noise sources.

机译：由27dB增益掺fiber光纤放大器，三端口环行器和47GHz带宽光纤光栅组成的光学前置放大器系统具有改进的接收器灵敏度，因此提高了自发基于布里渊的光纤分布式温度单传感器的传感器范围。末端传感器。光学信噪比提高了17dB。使用此系统并在1533nm下运行，实现了一个传感器，该传感器的范围为23km，空间分辨率为1.8m，测量时间为9分钟，温度分辨率为6K。温度分辨率归因于光学滤波后残留的瑞利信号对反向散射的自发布里渊信号的污染。理论上通过考虑相关的噪声源可以支持光信噪比。

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《Applications of Photonic Technology: Closing the Gap between Theory, Development, and Application 7C-Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers pt.1》|2004年|P.247-257|共11页
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作者
K. De Souza; T. P. Newson;
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作者单位

Physics Department, University of the West Indies, St. Augustine, Trinidad, W.I.;

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原文格式 PDF
正文语种 eng
中图分类应用光学;
关键词
brillouin; rayleigh; fiber optic sensor; erbium-doped fiber amplifier;

机译：布里洛因;瑞利;光纤传感器;掺b光纤放大器;

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专利

1. 50-km single-ended spontaneous-Brillouin-based distributed-temperature sensor exploiting pulsed Raman amplification [J] . Optics Letters . 2003,第18期

机译：采用脉冲拉曼放大的50 km单端自发布里渊型分布式温度传感器
2. 57-km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection [J] . Maughan SM., Newson TP., Kee HH. Optics Letters . 2001,第6期

机译：基于微波相干检测的57 km单端基于布里渊的自发分布式光纤温度传感器
3. On-line temperature measurement using single-ended distributed cascading fiber Bragg gratings-based Brillouin optical fiber sensor [J] . Xu Jin, Wang Rongping, Cabani Adnane, Measurement Science & Technology . 2019,第3期

机译：基于单端分布式级联光纤布拉格的布里渊光纤传感器在线温度测量
4. Optical signal-to-noise enhancement of a single-ended fiber optic spontaneous Brillouin-intensity-based distributed temperature sensor [C] . Keith P. De Souza, Trevor P. Newson Conference on Applications of Photonic Technology . 2004

机译：基于单端光纤自发布里渊强度的分布式温度传感器的光信号 - 噪声增强
5. Stimulated Brillouin Scattering based Optical Signal Processing for Fiber-optic Communications and Sensing. [D] . Wang, Liang. 2013

机译：基于受激布里渊散射的光信号处理，用于光纤通信和传感。
6. Calibrating Single-Ended Fiber-Optic Raman Spectra Distributed Temperature Sensing Data [O] . Mark B. Hausner, Francisco Suárez, Kenneth E. Glander, 2012

机译：校准单端光纤拉曼光谱分布的温度传感数据
7. Signal-to-noise enhancement of a distributed fibre-optic temperature sensor using optical preamplification [O] . de Souza K., Newson T.P. 2000

机译：使用光学前置放大器的分布式光纤温度传感器的信噪比增强
8. Temperature Performance of Raman Scattering in a Data Fiber and Its Application in a Distributed Temperature Fiber-Optic Sensor. [R] . Liu, D., Wang, J., Lin, S. 2000

机译：数据光纤中拉曼散射的温度特性及其在分布式温度光纤传感器中的应用。

Optical signal-to-noise enhancement of a single-ended fiber-optic spontaneous Brillouin intensity based distributed temperature sensor

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