中文摘要：

侧边抛磨光纤技术发展迅速，越来越多的基于侧边抛磨光纤的光器件己用于实际。为了更好地优化制作此类器件，本文对侧边抛磨区泄漏光功率空间分布进行了理论与实验分析。本文利用多层平板光波导模型对光纤侧边抛磨区涂覆不同折射率材料时，侧边抛磨区泄漏光功率的轴向出射方向进行了模拟计算，并进行了泄漏光功率空间分布的实验测试。分析结果表明，在不影响纤芯中光功率传输条件下，将抛磨区置于空气中，同时将光电探测器垂直置于抛磨平面上方，则可实现高效率接收侧边抛磨区泄漏光功率。

英文摘要：

The technology of side - polished fiber （SPF） is developing so quickly as that more and more devices based on the SPF have been used practically. In order to optimize those devices base on SPF, the spatial distribution of the optical power leaked from the SPF were analyzed theoretically and experimentally. Based on the multiple slab model of optical waveguide, directions of emission of the optical power leaked from the SPF were simulated and calculated as different refractive index materials overlaid on the polished region of SPF. The experiments of spatial distribution of the optical power leaked from the SPF were done. The results showed that in the condition of no effect on the transmission of light in the fiber core, the optical power leaked from the SPF could be collected by optoelectronic detector efficiently when the polished region of SPF was in air and the detector was put over the polished surface perpendicularly.