| 在单模光纤中放大的反斯托克斯拉曼背向自发散射的温度效应 |
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| 引用本文： | 张在宣,Insoo S.KIM,王剑锋,刘红林,余向东,郭宁.在单模光纤中放大的反斯托克斯拉曼背向自发散射的温度效应[J].光学学报,2004,24(5):09-613. |
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| 作者姓名： | 张在宣 Insoo S.KIM 王剑锋 刘红林 余向东 郭宁 |
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| 作者单位： | 中国计量学院光电子技术研究所,杭州,310034;韩国电气技术研究院光技术研究中心,汉城韩国437-808 |
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| 基金项目： | 浙江省重点科研项目 (0 1110 1981)，韩国科学技术部韩中光技术研究中心基金资助课题 |
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| 摘 要： | 在单模光纤中，输入的激光功率大于阈值时．出现放大的反斯托克斯拉曼背向自发散射现象。实验发现：放大的反斯托克斯拉曼背向自发散射具有温度效应．与反斯托克斯拉曼背向自发散射一样，放大的拉曼散射光的光子通量受到光纤温度的调制。反斯托克斯拉曼背向白发散射的放大效应抑制了单模光纤中的相干噪声，改善了系统的信噪比。实验还发现．放大的反斯托克斯扎曼背向自发散射空域曲线上放大的端点位置随激发功率的增高前移并具有一定的规律性。放大的反斯托克斯拉曼背向自发散射的温度效应作为一种新的测温原理，已应用于远程30km分布光纤温度传感器系统。
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| 关 键 词： | 拉曼背向自发散射 光时域反射技术 反斯托克斯拉曼背向自发散射温度效应 远程分布温度传感器 |
| 收稿时间： | 2003/2/17 |
Temperature Effect of Amplified Anti-Stokes Raman Spontaneous Backscattering in the Single Mode Fiber |
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| Zhang Zaixuan Insoo S. Kim Wang Jianfeng Liu Honglin Yu Xiandong Guo Ning Institute of Optoelctronics Technology,China Institute of Metrology,Hangzhou Optical Technology Research Group,Korea Electrotechnology Research Institute,Seoul,-,Korea.Temperature Effect of Amplified Anti-Stokes Raman Spontaneous Backscattering in the Single Mode Fiber[J].Acta Optica Sinica,2004,24(5):09-613. |
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| Authors: | Zhang Zaixuan Insoo S Kim Wang Jianfeng Liu Honglin Yu Xiandong Guo Ning Institute of Optoelctronics Technology China Institute of Metrology Hangzhou Optical Technology Research Group Korea Electrotechnology Research Institute Seoul - Korea |
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| Institution: | Zhang Zaixuan 1 Insoo S. Kim 2 Wang Jianfeng 1 Liu Honglin 1 Yu Xiandong 1 Guo Ning 1 1 Institute of Optoelctronics Technology,China Institute of Metrology,Hangzhou 310034 2 Optical Technology Research Group,Korea Electrotechnology Research Institute,Seoul,437-808,Korea |
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| Abstract: | Amplified anti-Stokes Raman spontaneous backscattering phenomena has been observed in single mode fiber, during input laser power is large than threshold power. In experiment it is discovered, the temperature effect of the amplified anti-Stokes Raman spontaneous backscattering is excised as some as anti-Stokes Raman spontaneous backscattering. The photon flux of amplified anti-Stokes Raman spontaneous backscattering is modulated by optical fiber temperature. The coherent noise of single mode fiber is restrained by the amplification effect of anti Stokes Raman backscattering, and the signal noise ratio of sensor system is improved. Experimental discover, the extremity point position on the amplified anti-Stokes Raman spontaneous backscattering space domain reflection curve is forward shifted with laser power raised, and obeys certain rule. The temperature effect of the amplified anti-Stokes Raman spontaneous backscattering has been applied to long range 30 km distributed optical fiber Raman temperature sensor system as a new principle of temperature measurement. |
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| Keywords: | Raman spontaneous backscattering optical time domain reflection technology anti-Stokes Raman spontaneous backscattering long range distribution temperature sensor |
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