Reduction of polarization-fluctuation induced drift in resonator fiber optic gyro by a resonator with twin 90° polarization-axis rotated splices
Reduction of polarization-fluctuation induced drift in resonator fiber optic gyro by a resonator with twin 90° polarization-axis rotated splices
复制标题
DOI：
10.1364/oe.18.001677
复制
发表时间：
2010-01-18
期刊：
影响因子：
3.8
通讯作者：
Hotate, Kazuo
中科院分区：
文献类型：
--
作者：
Wang, Xijing;He, Zuyuan;Hotate, Kazuo
通过具有双 90 度偏振轴旋转接头的保偏光纤 (PMF) 谐振器演示了一种抑制谐振器光纤陀螺仪 (R-FOG) 中偏振涨落引起的漂移的方法。通过将两个偏振轴旋转 90 度的拼接点之间的光纤段长度差设置为光纤拍长的一半，沿光纤偏振轴线性偏振的入射光波会激发单个本征偏振态 (ESOP)。与之前报道的采用单个 90 偏振轴旋转接头 [1]（其中两个 ESOP 被激励）的谐振器相比，我们的新方案避免了不需要的 ESOP 的影响，从而显着抑制了 R-FOG 输出中偏振波动引起的漂移。 (C) 2010 美国光学学会
A method to suppress polarization-fluctuation induced drift in resonator fiber optic gyro (R-FOG) is demonstrated by a polarization-maintaining fiber (PMF) resonator with twin 90 degrees polarization-axis rotated splices. By setting the length difference of the fiber segments between two 90 degrees polarization-axis rotated splicing points to a half of the beat-length of the fiber, a single eigen-state of polarization (ESOP) is excited with incident lightwave linearly polarized along the polarization-axis of the fiber. Compared to the previously reported resonator employing single 90 polarization-axis rotated splice [1], in which two ESOPs are excited, our new scheme avoids the effect from the unwanted ESOP and thus suppresses the polarization-fluctuation induced drift in R-FOG output significantly. (C) 2010 Optical Society of America