Sun Yue, Yan Xin, Wang Fang, Zhang Xuenan, Li Shuguang, Suzuki Takenobu, Ohishi Yasutake, Cheng Tonglei
State Key Laboratory of Synthetical Automation for Process Industries, College of Information Science and Engineering, Northeastern University, Shenyang 110819, China.
Research Center for Advanced Photon Technology, Toyota Technological Institute, 2-12-1, Hisakata, Tempaku, Nagoya 468-8511, Japan.
Sensors (Basel). 2020 Feb 13;20(4):1007. doi: 10.3390/s20041007.
For this study, a temperature sensor utilizing a novel tellurite photonic crystal fiber (PCF) is designed. In order to improve the sensor sensitivity, alcohol is filled in the air holes of the tellurite PCF. Based on the degenerate four-wave mixing theory, temperature sensing in the mid-infrared region (MIR) can be achieved by detecting the wavelength shift of signal waves and idler waves during variations in temperature. Simulation results show that at a pump wavelength of 3550 nm, the temperature sensitivity of this proposed sensor can be as high as 0.70 nm/°C. To the best of our knowledge, this is the first study to propose temperature sensing in the MIR by drawing on four-wave mixing (FWM) in a non-silica PCF.
本研究设计了一种利用新型碲酸盐光子晶体光纤(PCF)的温度传感器。为了提高传感器的灵敏度,在碲酸盐PCF的气孔中填充了酒精。基于简并四波混频理论,通过检测温度变化期间信号波和闲波的波长偏移,可以实现中红外区域(MIR)的温度传感。仿真结果表明,在泵浦波长为3550 nm时,该传感器的温度灵敏度可高达0.70 nm/°C。据我们所知,这是第一项通过利用非二氧化硅PCF中的四波混频(FWM)来提出MIR温度传感的研究。