Simultaneous strain and temperature measurement using a highly birefringence fiber loop mirror and a long-period grating written in a photonic crystal fiber
Simultaneous strain and temperature measurement using a highly birefringence fiber loop mirror and a long-period grating written in a photonic crystal fiber
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DOI：
10.1016/j.optcom.2009.07.002
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发表时间：
2009-10
影响因子：
2.4
通讯作者：
Chun-liu Zhao;Jia-Rong Zhao;W. Jin;J. Ju;Li Cheng;Xuguang Huang
中科院分区：
文献类型：
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作者：
Chun-liu Zhao;Jia-Rong Zhao;W. Jin;J. Ju;Li Cheng;Xuguang Huang
我们提出了一种同时测量应变和温度的新设计，使用高双折射光纤环镜（HiBi-FLM）与写入光子晶体光纤（PCF）中的温度不敏感长周期光栅（LPG）连接。 FLM 充当传感器头，而 PCF 中的 LPG 充当滤波器，将波长变化转换为光功率变化。通过测量该配置的光谱响应中的波长变化和两个近峰的功率差，可以获得同时的应变和温度测量。
We present a new design for simultaneous strain and temperature measurement using a high-birefringence fiber loop mirror (HiBi-FLM) concatenated with a temperature-insensitive long-period grating (LPG) written in a photonic crystal fiber (PCF). The FLM acts as a sensor head, while the LPG in PCF serves as a filter to convert wavelength variation to optical power change. By measuring the wavelength variation and the power difference of two near peaks in the spectral response of this configuration, simultaneous strain and temperature measurement is obtained.