[求助]用ZEMAX计算光纤的耦合效率 [复制链接]

我用ZEMAX计算光纤的耦合效率，可是我发现当接收光纤的数值孔径增大时耦合效率反而降低了，这是怎么回事呢？

模场分布约接近，耦合效率越高，跟NA无关

我也想知道，同问

我也想知道

谢谢  学学

能否请问五楼的大侠怎么做到的，谢谢啊~~335797507@qq.com

            

System Efficiency              :      0.999138 x}{/) ?vC  
(~#{{Ja  
Receiver Efficiency            :      0.945327 3* 1cCM42  
I ze+](  
Coupling Efficiency            :      0.944512 (-0.2479 dB) :H@Q`g u  
nd
}[X[ay  
Maximum Efficiency              :      0.995227 3)3?/y)_  
}CIH1q3P  
The system efficiency is the fraction of the energy in the source TY"8.vd  
beam that exits the optical system. This value is determined by a~>+I~^K5q  
the input na, entrance pupil size and position, apodization, k+t?EZ6L  
transmission of the optics, and vignetting. W9+H/T7!  
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The receiver efficiency is the fraction of the transmitted energy \QGh@AQp"  
that couples from the exit pupil to the receiving fiber. This 3rBSwgRl  
value is determined by aberrations and the na of the receiving fiber. 0Q`Dp;a5&  
'1'De^%6W  
The coupling efficiency is the fraction of energy radiated ibAZ=
RD  
by the source that couples into the receiver. This is the  ltK\)L  
product of the system and receiver efficiencies. HRn Q*  
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The maximum efficiency is the coupling efficiency if there OX-t#R`  
were no aberrations. _)XQb1]  
IOhJL'r  
数值孔径不是越大越好呀,当耦合光学系统的模式与你光线的模式完全匹配时,耦合效率最大. F>RL&i  
耦合效率的计算有一个积分过程,还是比较复杂的.

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有没有这方面的书籍？