Yu Zhenyu, Lang Tingting, Hu Jie, Chen Mengdan, Ding Kaige, Shao Li-Yang
Appl Opt. 2021 Apr 20;60(12):3474-3481. doi: 10.1364/AO.418225.
This paper proposes a temperature sensor based on a side-hole fiber (SHF). The sensor is formed by single-mode fiber (SMF)-coreless fiber (CLF)-SHF-CLF-SMF fusion splicing. The SHF adopts the dislocation fusion splicing method to ensure that one air hole is exposed. Two different interferences form a superposition, making the response more sensitive. The experiment shows that the sensitivity during heating and cooling is 1.587 nm/°C and 1.681 nm/°C, respectively, in the temperature range of 25-45°C. The sensor has high temperature sensitivity, exhibits easy processing, is smaller in size, and has important research value for temperature monitoring in daily life and industrial production.
本文提出了一种基于侧孔光纤（SHF）的温度传感器。该传感器由单模光纤（SMF）-无芯光纤（CLF）-侧孔光纤（SHF）-无芯光纤（CLF）-单模光纤（SMF）熔接而成。侧孔光纤采用错位熔接方法，确保一个气孔暴露在外。两种不同的干涉形成叠加，使响应更加灵敏。实验表明，在25-45°C的温度范围内，加热和冷却过程中的灵敏度分别为1.587nm/°C和1.681nm/°C。该传感器具有高温灵敏度，加工简便，尺寸较小，对日常生活和工业生产中的温度监测具有重要的研究价值。
