Multiwavelength Raman-fiber-laser-based Long-distance Remote Sensor for Simultaneous Measurement of Strain and Temperature

Young-Geun Han; T. V. A. Tran; Sang-Hyuck Kim

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Multiwavelength Raman-fiber-laser-based Long-distance Remote Sensor for Simultaneous Measurement of Strain and Temperature

机译：同时测量应变和温度的基于多波长拉曼光纤激光的远程传感器

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摘要

We propose a simple and flexible multiwavelength Raman-fiber-laser-based long-distance remote-sensing scheme for simultaneous measurement of strain and temperature by use of fiber Bragg gratings. By combining two uniform fiber Bragg gratings with a tunable chirped fiber grating, we readily achieve simultaneous two-channel sensing probes with a high extinction ratio of more than approx50 dB over a 50-km distance. When strain and temperature are applied, lasing wavelength separation and shift occur respectively, since the two uniform fiber Bragg gratings have identical material composition and different cladding diameters. This allows simultaneous measurement of strain and temperature for long-distance sensing applications of more than 50 km.

机译：我们提出了一种简单而灵活的基于多波长拉曼光纤激光器的长距离遥感方案，用于利用光纤布拉格光栅同时测量应变和温度。通过将两个均匀的布拉格光纤光栅与可调的fiber光纤光栅相结合，我们可以轻松实现同时的两通道传感探头，在50公里的距离内具有大于约50 dB的高消光比。当施加应变和温度时，由于两个均匀的光纤布拉格光栅具有相同的材料成分和不同的包层直径，因此分别发生了激光波长分离和偏移。对于超过50 km的长距离传感应用，这允许同时测量应变和温度。

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《Optics Letters》 |2005年第11期|共3页
作者
Young-Geun Han; T. V. A. Tran; Sang-Hyuck Kim;
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1. Multiwavelength Raman-fiber-laser-based Long-distance Remote Sensor for Simultaneous Measurement of Strain and Temperature [J] . Young-Geun Han, T. V. A. Tran, Sang-Hyuck Kim Optics Letters . 2005,第11期

机译：同时测量应变和温度的基于多波长拉曼光纤激光的远程传感器
2. Long-distance simultaneous measurement of strain and temperature based on a fiber Raman laser with a single fiber Bragg grating embedded on a quartz plate [J] . Thi Van Anh Tran, Young-Geun Han, Sang-Hyuck Kim, Optics Letters . 2005,第13期

机译：基于光纤拉曼激光器的远程同时测量应变和温度，该光纤拉曼激光器具有嵌入石英板上的单光纤布拉格光栅
3. Simultaneous optical fibre strain and temperature measurements in a hybrid distributed sensor based on Rayleigh and Raman scattering [J] . Gorshkov B. G., Taranov M. A. Quantum electronics . 2018,第2期

机译：基于瑞利和拉曼散射的混合分布式传感器同时光纤应变和温度测量
4. Long-distance remote sensors for simultaneous measurement of strain and temperature based on multiwavelength fiber lasers [C] . Young-Geun Han International conference on optical fibre sensors . 2009

机译：基于多波长光纤激光器的同时测量应变和温度的远程传感器
5. Fiber Bragg grating (FBG) sensors for the simultaneous measurements of strain and temperature [D] . Singh, Abhay Kumar. 2016

机译：光纤布拉格光栅（FBG）传感器，用于同时测量应变和温度
6. A Composite Fabry-Perot Interferometric Sensor with the Dual-Cavity Structure for Simultaneous Measurement of High Temperature and Strain [O] . Ping Xia, Yuegang Tan, Caixia Yang, 2021

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7. Dual-Polarization Distributed Feedback Fiber Laser Sensor Based on Femtosecond Laser-Inscribed In-Fiber Stressors for Simultaneous Strain and Temperature Measurements [O] . Kuikui Guo, Jun He, Gaixia Xu, 2020

机译：双偏振分布式反馈光纤激光器，基于飞秒激光刻录的纤维压力源，用于同时应变和温度测量
8. The Development of a PdCr Integral Weldable Strain Measurement System Based on NASA Lewis PdCr/Pt Strain Sensor for User-Friendly Elevated Temperature Strain Measurements [R] . Wnuk, S. P., Jr., Wnuk, V. P. 1997

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Multiwavelength Raman-fiber-laser-based Long-distance Remote Sensor for Simultaneous Measurement of Strain and Temperature

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