Temperature sensors based on photonic crystal fibers (PCFs) have attracted considerable attentions due to their desirable advantages. However, the real-time temperature sensing in the temporal region is rarely studied. Here, an all-fiber real-time high-sensitivity temperature sensor is fabricated based on the high-order soliton compression process. A 1560 nm femtosecond fiber laser is used as the injected pulse source and the alcohol-filled silica PCF is adopted as the temperature sensitive device. Temperature sensing can be realized by detecting the peak values of temporal profiles with an oscilloscope at the change of temperature. The oscilloscope possesses faster response rate than the optical spectrum analyzer and can record the variation of the single pulse. Through numerical simulations, a real-time temperature sensor with the sensitivity of 4.91 W C⁻¹ is achieved at the fiber length of 21 cm. Our simulated results show that the designed temperature sensors with low cost, compact all-fiber structure and real-time response are competitive for application in temperature measurement devices.

基于光子晶体光纤（PCF）的温度传感器由于具有理想的优势而备受关注。然而，很少研究时间区域中的实时温度感测。在此，基于高阶孤子压缩过程制造了全光纤实时高灵敏度温度传感器。使用1560 nm飞秒光纤激光器作为注入的脉冲源，并使用充满酒精的二氧化硅PCF作为温度敏感器件。可以通过在温度变化时用示波器检测时间分布的峰值来实现温度感测。示波器的响应速度比光谱分析仪快，并且可以记录单个脉冲的变化。通过数值模拟纤维长度为21 cm时达到^-1。我们的仿真结果表明，设计的低成本，紧凑的全纤维结构和实时响应的温度传感器在温度测量设备中具有竞争力。