Application of extrinsic F-P sensor in gas detection system

The structure, characteristics and working principle of extrinsic F-P sensor were introduced in details, and application of the extrinsic F-P sensor in gas detection system was expounded. The sensor takes hollow core photonic crystal fiber as isotopic carrier, is not affected by environmental temperature, which has characteristics such as high sensitivity, strong anti-jamming capability and low transmission loss, and can significantly improve accuracy and precision of gas concentration detection.