A highly‐birefringent fiber loop mirror temperature sensor demodulation based on a long‐period grating in photonic crystal fiber with differential processing
A highly‐birefringent fiber loop mirror temperature sensor demodulation based on a long‐period grating in photonic crystal fiber with differential processing
复制标题
基于差分处理的光子晶体光纤长周期光栅的高双折射光纤环镜温度传感器解调
DOI：
10.1002/mop.26460
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Xinyong Dong
中科院分区：
文献类型：
--
作者：
Yunpeng Wang;Chun;Juan Kang;Yong;Xinyong Dong
提出了一种基于光子晶体光纤（PCF）长周期光栅的高双折射光纤环镜温度传感器解调方法。利用PCF中LPG的温度不敏感特性和滤波功能，可以同时准确地监测位于LPG透射谱正负线性区域内的两个信号的强度。由于两种信号（也包括光纤传感器的噪声）通过相同的方式传输到监视器，因此两种信号的算法有效地消除了光纤传感器的噪声。实验结果表明，当光源功率变化±10%时，算法值保持不变，测得的温度变化与真实温度变化的相对误差仅为0.34%。与没有算法的传感相比，准确度从~ 97.3提高到~ 99.7%。©2011 Wiley期刊公司微波光学学报，2012；请登录wileyonlinelibrary.com在线阅读本文。DOI 10.1002 / mop.26460
A highly‐birefringent fiber loop mirror temperature sensor demodulation based on a long‐period grating (LPG) in photonic crystal fiber (PCF) with differential processing was proposed.Utilizing the property temperature insensitive and the filtering function of the LPG in PCF, the intensities of two signals located respectively within the positive and negative linear region of the LPG's transmission spectrum can be monitored simultaneously and accurately. The noise of fiber sensors is eliminated effectively by the algorithm of two signals, since the two signals (also including the noise of fiber sensors) transmit through the same way to the monitor. Experimental results show that the value of the algorithm remains constant when the power of light source varies ±10% and the relative error between the measured temperature change and the true change is only 0.34%. Compared with the sensing without the algorithm, the accuracy increases from∼97.3 to ∼99.7%. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:176–179, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26460