Abstract: A new fiber optic gyroscope (FOG) structure was put forwarded by authors. Based on the comparison with the traditional single-fiber-ring FOG, the important characteristics and advantages of the FOG with new structure are given. Furthermore, with detailed formula derivation and computation, the resonance conditions and resonance output characteristics of fiber optic ring resonators with or without welding point were presented.

Key words: resonant fiber optic gyroscope, double fiber ring resonator, resonance condition, resonance output characteristics

摘要： 提出了一种完全不同于传统单谐振环结构的双谐振环光纤陀螺结构。对照传统单谐振环结构分析了该结构方案所具有的显著特点和重要价值，同时通过详尽的公式推导和计算，给出了带焊接点谐振环和不带焊接点谐振环各自的谐振条件和谐振输出特性。

关键词: 谐振型光纤陀螺, 双谐振环, 谐振条件, 谐振输出特性