高精度光纤陀螺用宽谱 ASE 光源的设计及验证

ASE light source is the core component of the optical path of high precision fiber optic gyro for satellite. The performance of the light source will affect the properties of the gyro, such as noise, bias and scale factor stability. High power and wide spectrum ASE light source can improve the accuracy and stability of the gyro product. A double-pass forward optical path structure is designed for the engineering application of a wide spectrum ASE light source. The typical gaussian-shaped wide-spectrum ASE light source with output power higher than 5 mW and spectrum width greater than 10 nm is batch applied in high-precision fiber optic gyro products for aerospace. Furthermore, to further improve the performance of high-precision fiber optic gyro in the future, the design of ASE light source with spectrum width greater than 20 nm is completed by combining flat filter and Gaussian filter.