Coupling Intensity Measurement Based on White Light Interferometry in the Distributed Long PMF Sensors

Coupling Intensity Measurement Based on White Light Interferometry in the Distributed Long PMF Sensors
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分布式长PMF传感器中基于白光干涉的耦合强度测量

DOI:
10.1109/jsen.2012.2204977
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发表时间:
2012-06
影响因子:
4.3
通讯作者:
Yimo Zhang
Yimo Zhang
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Wenting Ye;Xinwei Chen;Dagong Jia;Yimo Zhang

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在保偏光纤(PMF)传感器中,检测到的耦合强度随着传输距离的增加而明显下降。测试了超过500 m的长PMF,通过实验研究了强度衰减现象,并提出了一种带有参考点的改进方法来精确测量耦合强度。实验结果表明,耦合强度能够得到有效补偿。耦合强度的绝对误差小于0.59 dB。
In polarization-maintaining fiber (PMF) sensors, the detected coupling intensity descends obviously with increments of the transmission distance. A long PMF of more than 500 m is tested, the phenomenon of intensity attenuation is investigated experimentally, and a modified method with a reference point is proposed to measure the coupling intensity accurately. The experimental results show that the coupling intensity can be compensated effectively. The absolute error of coupling intensity is less than 0.59 dB.
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