Influence of Temperature on All-Silica Fabry-Pérot Pressure Sensor
An all-silica Fabry-Pérot interferometer (FPI) is demonstrated for Nail Dry Oil high-temperature pressure monitoring.The pressure sensor is fabricated with single mode fiber and silica capillary by CO2 laser.Owing to slight mismatch of thermal expansion coefficient in all-silica structure, it can work stably under 600°C atmosphere.The