Simultaneous measurement of curvature and temperature based on PCF-based interferometer and fiber Bragg grating
Simultaneous measurement of curvature and temperature based on PCF-based interferometer and fiber Bragg grating
复制标题
基于PCF干涉仪和光纤布拉格光栅的曲率和温度同时测量
DOI：
10.1016/j.optcom.2011.08.048
复制
发表时间：
2011-12-01
影响因子：
2.4
通讯作者：
Dong, Xinyong
中科院分区：
文献类型：
--
作者：
Zhou, Yan;Zhou, Wenjun;Dong, Xinyong
提出了一种由基于光子晶体光纤(PCF)的马赫-曾德尔干涉仪(MZI)和光纤布拉格光栅(FOG)组成的同时测量曲率和温度的传感头，并进行了实验验证。通过在两根单模光纤之间拼接一小段PCF制成的MZI，其气孔结构在熔接点附近完全坍塌，对光纤弯曲和环境温度敏感，而雾只对后者敏感。因此，可以同时测量曲率和温度。实验测得曲率和温度的灵敏度分别为4.06 nm/m(-1)和630 pm/℃。基于10 PM的波长测量分辨率，对应的曲率和温度的分辨率分别为52x10(-4)m(-1)和125℃(C)2011年爱思唯尔。版权所有。
A sensor head consisting of a photonic crystal fiber (PCF)-based Mach-Zehnder interferometer (MZI) and a fiber Bragg grating (FOG) is proposed and experimentally demonstrated for simultaneous measurement of curvature and temperature. The MZI fabricated by splicing a short length of PCF between two single-mode fibers with the air-hole structure that completely collapsed near the splicing points, is sensitive to fiber bending and surrounding temperature, while the FOG is only sensitive to the later. Simultaneous measurement of curvature and temperature is therefore obtained. Sensitivities of 4.06 nm/m(-1) and 630 pm/degrees C are achieved experimentally for curvature and temperature, respectively. And the corresponding resolutions are 52 x 10(-4) m(-1) and 125 degrees C for curvature and temperature, respectively, based on the wavelength measurement resolution of 10 pm. (C) 2011 Elsevier By. All rights reserved.