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1. 发明申请

US20130020486A1 DISTRIBUTED OPTICAL FIBER SENSOR BASED ON ROMAN AND BRILLOUIN SCATTERING 失效
标题翻译：基于罗马和布朗散射的分布式光纤传感器
公开(公告)号：US20130020486A1
公开(公告)日：2013-01-24
申请号：US13637910
申请日：2010-08-20
申请人： Zaixuan Zhang , Chenxia Li , ShangZhong Jin , Jianfeng Wang , Huaping Gong , Yi Li
发明人： Zaixuan Zhang , Chenxia Li , ShangZhong Jin , Jianfeng Wang , Huaping Gong , Yi Li
IPC分类号： G01N21/65
CPC分类号： G01B11/16 , G01D5/35364 , G01K11/32 , G01L1/242 , G01L1/247
摘要： A distributed optical fiber sensor based on Raman and Brillouin scattering is provided. The distributed optical fiber sensor includes a semiconductor FP cavity pulsed wideband optical fiber laser (11), a semiconductor external-cavity continuous narrowband optical fiber laser (12), a wave separator (13), an electro-optic modulator (14), an isolator (15), an Er-doped optical fiber amplifier (16), a bidirectional coupler (17), an integrated wavelength division multiplexer (19), a first photoelectric receiving and amplifying module (20), a second photoelectric receiving and amplifying module (21), a direct detection system (22), a narrowband optical fiber transmission grating (23), a circulator (24) and a coherence detection module (25). The temperature and the strain can be measured simultaneously, and the signal-to-noise ratio of the system is enhanced.
摘要翻译：提供了一种基于拉曼和布里渊散射的分布式光纤传感器。分布式光纤传感器包括半导体FP腔脉冲宽带光纤激光器（11），半导体外腔连续窄带光纤激光器（12），波分离器（13），电光调制器（14），隔离器（15），掺铒光纤放大器（16），双向耦合器（17），集成波分复用器（19），第一光电接收和放大模块（20），第二光电接收和放大模块（21），直接检测系统（22），窄带光纤传输光栅（23），循环器（24）和相干检测模块（25）。可以同时测量温度和应变，提高系统的信噪比。

2. 发明授权

US08785859B2 Distributed optical fiber sensor based on Raman and Brillouin scattering 失效
标题翻译：基于拉曼和布里渊散射的分布式光纤传感器
公开(公告)号：US08785859B2
公开(公告)日：2014-07-22
申请号：US13637910
申请日：2010-08-20
申请人： Zaixuan Zhang , Chenxia Li , Shangzhong Jin , Jianfeng Wang , Huaping Gong , Yi Li
发明人： Zaixuan Zhang , Chenxia Li , Shangzhong Jin , Jianfeng Wang , Huaping Gong , Yi Li
IPC分类号： G01J5/02 , H01S3/00 , G01L1/24 , G01B11/16 , G01D5/353 , G01K11/32
CPC分类号： G01B11/16 , G01D5/35364 , G01K11/32 , G01L1/242 , G01L1/247
摘要： A distributed optical fiber sensor based on Raman and Brillouin scattering is provided. The distributed optical fiber sensor includes a semiconductor FP cavity pulsed wideband optical fiber laser (11), a semiconductor external-cavity continuous narrowband optical fiber laser (12), a wave separator (13), an electro-optic modulator (14), an isolator (15), an Er-doped optical fiber amplifier (16), a bidirectional coupler (17), an integrated wavelength division multiplexer (19), a first photoelectric receiving and amplifying module (20), a second photoelectric receiving and amplifying module (21), a direct detection system (22), a narrowband optical fiber transmission grating (23), a circulator (24) and a coherence detection module (25). The temperature and the strain can be measured simultaneously, and the signal-to-noise ratio of the system is enhanced.
摘要翻译：提供了一种基于拉曼和布里渊散射的分布式光纤传感器。分布式光纤传感器包括半导体FP腔脉冲宽带光纤激光器（11），半导体外腔连续窄带光纤激光器（12），波分离器（13），电光调制器（14），隔离器（15），掺铒光纤放大器（16），双向耦合器（17），集成波分复用器（19），第一光电接收和放大模块（20），第二光电接收和放大模块（21），直接检测系统（22），窄带光纤传输光栅（23），循环器（24）和相干检测模块（25）。可以同时测量温度和应变，提高系统的信噪比。

3. 发明授权

US09157811B2 Dispersion and loss spectrum auto-correction distributed optical fiber raman temperature sensor 有权
标题翻译：分散和损耗谱自动校正分布式光纤拉曼温度传感器
公开(公告)号：US09157811B2
公开(公告)日：2015-10-13
申请号：US13637890
申请日：2010-08-20
申请人： Zaixuan Zhang , Chenxia Li , Jianfeng Wang , Xiangdong Yu , Wensheng Zhang , Wenping Zhang , Xiaohui Niu
发明人： Zaixuan Zhang , Chenxia Li , Jianfeng Wang , Xiangdong Yu , Wensheng Zhang , Wenping Zhang , Xiaohui Niu
IPC分类号： G01K7/00 , G01K11/32
CPC分类号： G01K11/32 , G01K2011/324
摘要： A dispersion and loss spectrum auto-correction distributed optical fiber Raman temperature sensor has a dual fiber pulsed laser module with dual Raman wavelength shifts. The laser module is composed of a power supply (11), an electronic switch (12), a primary laser (13) and a secondary laser (14), a first combiner (15), a bidirectional coupler (16), a multimode fiber (17), an integrated optical fiber wavelength division multiplexer (18), a second combiner (19), a direct detection system (20), a signal collection and processing system (21) and a display (22). The sensor uses two light sources that have two Raman wavelength shifts, wherein the central wavelength of backward anti-Stokes Raman scattering peak of the primary light source coincides with that of the backward Stokes scattering peak center wavelength of the secondary light source, and the time domain reflection signal of the one-way optical fiber Rayleigh scattering is deducted. Based on the optical fiber Raman scattering temperature measurement principle, the dispersion and loss spectrum auto-correction method and the optical time domain reflection principle, the optical fiber dispersion and the loss spectrum can be self-corrected, and the random power loss caused by bending and stretching in installation can also be auto-corrected.
摘要翻译：分散和损耗谱自动校正分布式光纤拉曼温度传感器具有双拉曼波长偏移的双光纤脉冲激光模块。激光模块由电源（11），电子开关（12），初级激光器（13）和次级激光器（14），第一组合器（15），双向耦合器（16），多模光纤（17），集成光纤波分复用器（18），第二组合器（19），直接检测系统（20），信号采集和处理系统（21）和显示器（22）。传感器使用具有两个拉曼波长偏移的两个光源，其中初级光源的反向反斯托克斯拉曼散射峰的中心波长与二次光源的向后斯托克斯散射峰值中心波长的中心波长一致，并且时间单向光纤瑞利散射的域反射信号被扣除。基于光纤拉曼散射温度测量原理，色散和损耗谱自动校正方法和光时域反射原理，光纤色散和损耗谱可以自校正，并且由弯曲引起的随机功率损耗并且安装中的拉伸也可以自动校正。

4. 发明申请

US20130028289A1 DISPERSION AND LOSS SPECTRUM AUTO-CORRECTION DISTRIBUTED OPTICAL FIBER RAMAN TEMPERATURE SENSOR 有权
标题翻译：分散和损耗光谱自动校正分布式光纤拉曼温度传感器
公开(公告)号：US20130028289A1
公开(公告)日：2013-01-31
申请号：US13637890
申请日：2010-08-20
申请人： Zaixuan Zhang , Chenxia Li , Jianfeng Wang , Xiangdong Yu , Wensheng Zhang , Wenping Zhang , Xiaohui Niu
发明人： Zaixuan Zhang , Chenxia Li , Jianfeng Wang , Xiangdong Yu , Wensheng Zhang , Wenping Zhang , Xiaohui Niu
IPC分类号： G01K11/32
CPC分类号： G01K11/32 , G01K2011/324
摘要： A dispersion and loss spectrum auto-correction distributed optical fiber Raman temperature sensor has a dual fiber pulsed laser module with dual Raman wavelength shifts. The laser module is composed of a power supply (11), an electronic switch (12), a primary laser (13) and a secondary laser (14), a first combiner (15), a bidirectional coupler (16), a multimode fiber (17), an integrated optical fiber wavelength division multiplexer (18), a second combiner (19), a direct detection system (20), a signal collection and processing system (21) and a display (22). The sensor uses two light sources that have two Raman wavelength shifts, wherein the central wavelength of backward anti-Stokes Raman scattering peak of the primary light source coincides with that of the backward Stokes scattering peak centre wavelength of the secondary light source, and the time domain reflection signal of the one-way optical fiber Rayleigh scattering is deducted. Based on the optical fiber Raman scattering temperature measurement principle, the dispersion and loss spectrum auto-correction method and the optical time domain reflection principle, the optical fiber dispersion and the loss spectrum can be self-corrected, and the random power loss caused by bending and stretching in installation can also be auto-corrected.
摘要翻译：分散和损耗谱自动校正分布式光纤拉曼温度传感器具有双拉曼波长偏移的双光纤脉冲激光模块。激光模块由电源（11），电子开关（12），初级激光器（13）和次级激光器（14），第一组合器（15），双向耦合器（16），多模光纤（17），集成光纤波分复用器（18），第二组合器（19），直接检测系统（20），信号采集和处理系统（21）和显示器（22）。传感器使用具有两个拉曼波长偏移的两个光源，其中初级光源的反向反斯托克斯拉曼散射峰的中心波长与二次光源的向后斯托克斯散射峰值中心波长的中心波长一致，并且时间单向光纤瑞利散射的域反射信号被扣除。基于光纤拉曼散射温度测量原理，色散和损耗谱自动校正方法和光时域反射原理，光纤色散和损耗谱可以自校正，并且由弯曲引起的随机功率损耗并且安装中的拉伸也可以自动校正。

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