[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 Y1r,2k  
G1
_Nd2w  
Receiver Efficiency            :      0.945327 6VR18Y!y  

M/w{&&  
Coupling Efficiency            :      0.944512 (-0.2479 dB) ~/c5hyTx  
KS! iL=i  
Maximum Efficiency              :      0.995227 AVpuMNd@  
-Cj_B\  
The system efficiency is the fraction of the energy in the source 46ChMTt  
beam that exits the optical system. This value is determined by eY3=|RR  
the input na, entrance pupil size and position, apodization, IA4+ad'\E  
transmission of the optics, and vignetting. )fCMITq.|  
9t}xXk  
The receiver efficiency is the fraction of the transmitted energy T +\B'"  
that couples from the exit pupil to the receiving fiber. This 7\/u&  
value is determined by aberrations and the na of the receiving fiber. Y+qus  
Qp69Sk@H{  
The coupling efficiency is the fraction of energy radiated A}4t9|/K6  
by the source that couples into the receiver. This is the #<}kISV0  
product of the system and receiver efficiencies. N9*UMVU  
%c0z)R~  
The maximum efficiency is the coupling efficiency if there {y/-:=S)A  
were no aberrations. hT=f;6$  
(w2(qT&O  
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. j];G*-iv{  
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？