A distributed flexible optical fiber F-P battery temperature detection system based on thermo-optic effect

Based on the thermo optic effect, a flexible optical fiber temperature sensor is developed, which is adhered to PDMS to provide accurate and fast measurement by measuring the response of F-P resonator to 1550nm DFB laser. The response range is 70 °C -90 °C, and the accuracy is 0.015nm/°C. The sensor not only has the advantages of high sensitivity, intrinsic safety, corrosion resistance, high temperature resistance and low cost, but also supports multi-point detection and is suitable for battery temperature detection.