The quantity in relation to the coupling efficiency of an optical fiber:lasing mode, divergence angle, numerical aperture, focal diameter and precision optical fiber coupler are discussed.
围绕光纤耦合效率相关的量：激光模式、发散角、数值孔径、焦斑直径、精密光纤耦合器等问题进行了讨论；
The formulas of coupling through circular aperture on the common wall between striplines are presented by a small aperture coupling theory.
根据小孔耦合理论给出了带状线间通过公共壁上圆孔耦合的耦合度表示式。
Coupling efficiency can be maximized by optimizing the relative aperture of coupling lens.
通过优化耦合透镜相对孔径，可以实现较高效率的耦合。
It shows that, for the case of the same area, the energy coupling into the square aperture is smaller than that of into the rectangular ones.
结果表明，在孔洞面积相同的情况下，电磁脉冲对正方形孔洞的耦合能量较小；
The Small Aperture Coupling has been researched for many years as a important part of microwave theory.
长期以来，小孔耦合的机理和计算方法是微波理论中一个十分受人重视的问题。
The Small Aperture Coupling has been researched for many years as a important part of microwave theory.
长期以来，小孔耦合的机理和计算方法是微波理论中一个十分受人重视的问题。
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