The transitional guide is used to improve the mode field matching between both the waves supported by the incident and output waveguides.
过渡波导用于改善入射基模与出射偶对称模之间的场分布匹配，有效地提高了功率耦合效率，降低了分支耦合损耗。
Secondly, the mode field of lensed fiber has been analyzed in experiment and theory, and the lensed fiber model matching the laser mode is given.
然后对透镜光纤的模场进行了分析和试验对比，得到与激光器模场相匹配的透镜光纤模型；
Secondly, the mode field of lensed fiber has been analyzed in experiment and theory, and the lensed fiber model matching the laser mode is given.
然后对透镜光纤的模场进行了分析和试验对比，得到与激光器模场相匹配的透镜光纤模型；
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