最后，文中给出了一个利用这种等效方法计算弯曲波导损耗的例子。
The bending loss of a SOI bent waveguide is also calculated with the present and conventional EIMs respectively.
给出了对波导管弯曲损耗的要求。
Requirements for minimizing the waveguide axis bending are given.
通过对不同应用的光纤波导结构的制造、性能测试和分析，指出了波导结构设计与光纤衰减、模场直径、弯曲损耗和波导色散等的关系。
Based on manufacture, performance test and analysis of different optical fiber waveguides, the relationships between waveguide and loss, MFD, bend loss, waveguide dispersion are deduced respectively.
为了数值求解平面光波导的弯曲损耗，首先给出了平面弯曲光波导的传输模型。
Propagation model for bent planar waveguides is presented for calculating bent loss in planar waveguides.
结果表明，弯曲处引入的新缺陷空气孔在极大程度上改善了光子晶体波导的损耗，并最终得到了较好的传输效果。
Optimization are done on some photonic structures, through the introduction of a new air-cylinder in bend finally we have got a comparatively good light propagation outcome.
结果表明，弯曲处引入的新缺陷空气孔在极大程度上改善了光子晶体波导的损耗，并最终得到了较好的传输效果。
Optimization are done on some photonic structures, through the introduction of a new air-cylinder in bend finally we have got a comparatively good light propagation outcome.
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