Two-beam phase-sensitive optical time domain reflectometer based on Jones matrix modeling
Two-beam phase-sensitive optical time domain reflectometer based on Jones matrix modeling
复制标题
基于琼斯矩阵建模的两光束相敏光时域反射仪
DOI：
10.1117/1.oe.52.9.094102
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发表时间：
2013-09
影响因子：
1.3
通讯作者：
靳世久
中科院分区：
文献类型：
--
作者：
安阳;冯欣;李健;封浩;靳世久
抽象。提出了一种双光束相敏光时域反射计（OTDR），并进行了实验验证。光脉冲被发射到两个分布式光纤中。利用双通道瑞利散射信号的干涉效应和传统光时域反射仪的定位原理，采用一种新的信号处理方案，实现了对传感光纤沿着振动事件的检测和定位。此外，针对不使用偏振控制器（PC）时容易出现的灵敏度衰减问题，建立了基于等效琼斯矩阵的光纤偏振模型。仿真结果表明，由于传感光纤偏振特性的差异，不同偏振态入射光的信号幅度变化较大。实验结果表明，在PC机上，信号信噪比可稳定在9.5dB，验证了传感器的有效性。
Abstract. A two-beam phase-sensitive optical time domain reflectometer (OTDR) is proposed and experimentally demonstrated. Optical pulses are launched into two distributed fibers. With the interference effect of two channel Rayleigh scattering signals and the positioning principle of the traditional OTDR, detection and location of vibration events along sensing fibers can be achieved using a new signal processing scheme. What is more, to investigate the sensitivity fading problem that often occurred when polarization controller (PC) is not utilized, the optical polarization model based on the equivalent Jones matrices of sensing fibers is established. Simulation results show that due to the polarization characteristic discrepancy of the sensing fibers, the signal amplitude varies a lot for different polarization states of the incident light. Experimental result shows that with the PC, the signal signal to noise ratio can be stabilized as 9.5 dB, which verifies the effectiveness of the sensor.
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影响因子：
2.6
作者：
Choi, KN;Taylor, HF
通讯作者：
Taylor, HF
影响因子：
1.9
作者：
Juarez, Juan C.;Taylor, Henry F.
通讯作者：
Taylor, Henry F.
DOI：
--
发表时间：
2007
期刊：
Opto-electronic Engineering
影响因子：
--
作者：
Fu Yu-mei
通讯作者：
Fu Yu-mei
DOI：
--
发表时间：
1994
期刊：
--
影响因子：
--
作者：
W. Seo
通讯作者：
W. Seo
影响因子：
4.7
作者：
Lu, Yuelan;Zhu, Tao;Bao, Xiaoyi
通讯作者：
Bao, Xiaoyi