Micro-nano fiber sensor with high sensitivity for temperature measurement

As the perfect combination of fiber optics and nanotechnology, micro-nano fiber is one of the frontier research directions in fiber optics and micro-nano photonics developed in recent years. In this paper, a high-sensitivity temperature sensor is proposed and realized based on the micro-nano fiber structure. The degree of linearity and sensitivity of the sensor are 98.6% and -0.0121 dBm / °C, respectively. Besides, the preparation process and influencing factors of micro-nano fiber are also introduced and discussed in detail. The configuration features the advantages of high sensitivity, simple structure, low transmission loss, low cost, and easy fabrication, making it a good candidate for the field of temperature measurement.