Study On 157nm Excimer Laser Micromachining In PCF From Self-loading F-P Sensor

Optical fiber for sensing can be combined network, intelligent use of modern technology is easy, set in one of information transmission and sensing can be an effective solution to conventional detection techniques can not be completely qualified for the measurements. Fabry-Perot cavity (F-P) is a combination of sensors and sensor information transmission in one of the rapid development of new sensors and optical fiber sensor has to become an important branch of research has been widely used in various physical quantities Measurement, such as pressure, temperature, strain, displacement, vibration and refractive index and so on. Rapid detection of biological health, an important regional health monitoring of civil engineering, mine safety, protection of large aerospace aircraft, have broad application prospects.In this paper, based on 157nm excimer laser micromachining in photonic crystal fiber (PCF) from the self-loading F-P sensors, sensing probe of the production process technology, and F-P sensors contained in the PCF from the temperature, strain, refractive index of the sensing system of measurement made. Include the following:1. Discusses the design using 157nm excimer laser processing in the PCF self-loading F-P sensors on the purpose and significance. This paper introduces the based on PCF F-P sensor technology and the development of sensor technology intervention. Point out the research objectives and innovation.2. Introduced the 157nm excimer laser system and fiber optic systems around the 157nm laser micro-machining experiment with different processing parameters, the 157nm laser system for single mode fiber and photonic crystal fiber processing quality, through the optimization of process parameters obtained the best fiber 157nm laser processing parameters.3. The basic theory of the characteristics of PCF were introduced, study on the optical fiber F-P cavity interference principle and structure. Using 157mm excimer laser micromachining of PCF, formed by laser processing directly from the PCF self-loading F-P sensor. End of the fiber laser processing, and then welding SMF and PCF, which produce PCF self-loading F-P sensor.4. PCF self-loading F-P sensor with temperature, stress, refractive index test. Study on PCF self-loading F-P sensor performance and features, and compare the performance parameters of different PCF self-loading F-P sensor.5. Pointed out that the sensor in the process operation, optimization and utilization need improvement, and the direction and measures for further study.