Low loss connection of fiber optic rotary is realized by direct coupling of fiber, which is photon crystal fiber (PCF).

该设计以光子晶体光纤为基础，采用直接耦合的方法实现低损耗的光纤旋转连接。

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The part of optic paths includes optical fiber strain sensor, lamp-house, optical fiber coupling instrument and light dispersion equipment.

光路部分包括光纤传感器、光纤、光源、光纤耦合器以及设计的解调光路部分。

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But spurious polarization coupling caused by many factors will affect the performance of PMF, and therefore reduce fiber-optic gyro's quality and measuring precision.

由于多种因素使得保偏光纤内部产生了寄生偏振耦合，影响了保偏光纤的性能，并因此降低了光纤陀螺的质量和测试精度。

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