【作者】 段玮倩； 杨远洪； 杨明伟；

【Author】 DUAN Wei-qian,YANG Yuan-hong,YANG Ming-wei (School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China)

【机构】 北京航空航天大学仪器科学与光电工程学院；

【摘要】 文中提出了一种可同时测量温度和压力的保偏光纤波分复用传感器系统的方案。该系统采用了一段熊猫光纤作为温度传感头,一段高双折射光子晶体光纤(PCF)作为压力传感头。二者通过一个波分复用器进行连接,输入信号由一个宽谱光源提供,输出由光谱仪接收,并采用波长检测的方式进行信号处理。实验结果显示:在采用162.7毫米熊猫光纤和262.8毫米光子晶体光纤作为传感头的情况下,得到的温度灵敏度为约1.16nm/°C,压力灵敏度为2.42nm/MPa。更多还原

【Abstract】 We present a polarization-maintain fiber sensor system for simultaneous temperature and pressure measurement basing on a wavelength division multiplied(WDM).A piece of PANDA fiber acts as a polarimetric temperature sensor and a highly birefringent photonic crystal fiber (PCF) polarimetric pressure sensor.They are multiplexed by use of a WDM and interrogated in wavelength domain by using a combination of a broadband source and an optical spectrum analyzer.A temperature sensitivity of about 1.16 nm/°C and a pressure sensitivity of 2.42 nm/MPa with respectively 162.7 mm of PANDA fiber and 262.8 mm of PCF was demonstrated by experiments.更多还原