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保偏光纤耦合器是干涉仪和光纤陀螺仪的关键器件。介绍了用匹配型椭圆包层保偏光纤制作保偏光纤耦合器的工艺流程、测试结果以及分光比随温度的变化情况。试验结果表明,保偏光纤耦合器的综合性能指标,尤其是附加损耗和温度性能达到了国内领先水平。
Polarization-maintaining fiber couplers are key components for interferometers and fiber optic gyros. The process flow, the test results and the change of the splitting ratio with the temperature of a polarization-maintaining optical fiber coupler with a matching elliptical cladding PM fiber are introduced. The experimental results show that the overall performance index of polarization maintaining fiber coupler, especially the additional loss and temperature performance has reached the leading domestic level.