Widely used in fiber optic gyroscope, fiber polarization interferometer, and other areas of optical fiber sensing

Photonic crystal fiber (PCF) is a new type of special optical fiber cladding are arranged in periodic or random distribution of the air micrometer holes in the design and preparation of the PCF has a greater flexibility. Through the introduction of the core near the stress element, or adjust the air hole size and arrangement, can obtain a high birefringence PCF. With conventional polarization maintaining fiber (PMF), compared with high  electric meter  PCF higher sensitivity, better  air circuit breaker  stability, polarization maintaining better performance, etc., can be widely used in fiber optic gyroscope, fiber polarization interferometer, and other areas of optical fiber sensing . In this thesis, exploration and research of high birefringence PCF Modular Interference Characteristics of the optical voltage transformer in the application of optical current / voltage Voltage stabilizer  implementations provide a new idea. This paper describes a high birefringence birefringent PCF in principle and its application status in the sensing area, as well as domestic and optical voltage transformer basic working principle and its research development status, on this basis, analyzes the high double refraction between the PCF mode interference properties, and high birefringence PCF based Modular Interference optical voltage transformer conducted exploratory research.