光纤陀螺光路小型化技术研究

Techniques in Miniaturization of Optic Circuit for FOG

为了实现光纤陀螺的小型化，从其核心光路部分入手，提出了采用0．85μm波长方案，并对0．85μm波长光学元器件的特性进行了分析，根据其工作机理，进行了光路元器件的小型化；结合相关技术对光路进行了优化设计，实现了光路小型化。经验证，光路小型化后能满足系统应用的要求，是一种可行的方案，对光纤陀螺工程化具有重大指导意义。

For the miniaturization of FOG （ Fiber Optic Gyroscope）, the plan to start at core optic circuit and adopt 0. 85 μm wavelength is proposed and the characteristics of optical components at 0. 85 μm wavelength are discussed. The components are miniaturized according to its mechanism, and then the optic circuit is optimized and miniaturized. Experiments prove that after the miniaturization of the optic circuit, FOG meets the system＇s application requirements and thus miniaturization is feasible and of great importance for FOG engineering.