[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 TvbE2Q;/UL  
wIt}dc  
Receiver Efficiency            :      0.945327 57c8xk[.2  
zrb}_  
Coupling Efficiency            :      0.944512 (-0.2479 dB) `|q(h Ow2  
kuP(r  
Maximum Efficiency              :      0.995227 6i/(5 nQ  
YaqJ,"GlT  
The system efficiency is the fraction of the energy in the source rx|pOz,:  
beam that exits the optical system. This value is determined by %'pgGC"|  
the input na, entrance pupil size and position, apodization, rey!{3U  
transmission of the optics, and vignetting. Avb\{)s+  
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The receiver efficiency is the fraction of the transmitted energy <LiPEo.R  
that couples from the exit pupil to the receiving fiber. This RA L~!"W  
value is determined by aberrations and the na of the receiving fiber. dy[X3jQB  
-
iZ`Y?  
The coupling efficiency is the fraction of energy radiated 8":Q)9;%  
by the source that couples into the receiver. This is the Q=$2c[Uk  
product of the system and receiver efficiencies. ;2QP7PrSY  
w}L[u r;I_  
The maximum efficiency is the coupling efficiency if there es7=%!0  
were no aberrations. V'gh6`v  
?:0Jav  
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. ZN0P:==  
耦合效率的计算有一个积分过程,还是比较复杂的.

我也想知道

有没有这方面的书籍？