[讨论]看过来&Fiber coupling efficiency！！！！！！

hanhan

用zemax设计光通迅DWDM中的Mux/Demux的朋友吗？涉及到一个耦合效率Fiber coupling efficiency与象差的关系问题。
     我做得一个系统，spot diagram 很小，但为何Fiber coupling efficiency却非常不理想呢？
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helloptics

光纤的耦合效率不仅与光线的汇聚情况有关，还与数值孔径有关