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谐振式光纤陀螺(PROG)采用空心光子带隙(HCPBG)光纤后,光克尔效应引入的系统漂移将会与普通单模光纤(SMF)谐振式陀螺系统中的有所不同。为了研究谐振式空心光子带隙光纤陀螺中光克尔效应的变化情况,采用光场叠加的方法,从理论上分析谐振式空心光子带隙光纤陀螺中的光克尔效应,同时针对光克尔效应引入的系统漂移进行了数值仿真,并且与普通单模光纤谐振腔陀螺中的光克尔效应进行对比。理论计算表明,采用空心光子带隙光纤的谐振式光纤陀螺比采用普通单模光纤谐振式陀螺的光克尔效应有明显的降低,在光源线宽不变时,不同光纤环长度对应的光克尔效应引起的旋转角速度漂移前者比后者降低了1~2个数量级。
Resonance fiberoptic gyroscopes (PROGs) Hollow photonic bandgap (HCPBG) fibers introduce optical drift introduced by Kerr effects that will differ from that of conventional single mode fiber (SMF) resonant gyroscopes. In order to study the change of Kerr effect in a resonant hollow-core photonic band-gap fiber optic gyro, the optical Kerr effect in a resonant hollow-core photonic band-gap fiber optic gyroscope is analyzed theoretically using the method of optical field superposition. Meanwhile, The system drift introduced by the effect is numerically simulated and compared with the Kerr effect in a common single mode fiber resonator gyro. The theoretical calculation shows that the optical fiber gyroscope with hollow photonic bandgap fiber has a significantly lower Kerr effect than the common single mode fiber resonator gyroscope. When the light source linewidth is constant, the corresponding optical fiber g Er effect of the rotation angular velocity drift of the former than the latter reduced by 1 to 2 orders of magnitude.