System Efficiency : 0.999138 Mxd fuFss
c<D Yk f
Receiver Efficiency : 0.945327 JG( <
dlT\VWMha(
Coupling Efficiency : 0.944512 (-0.2479 dB) ~ JZ Lfw
"^XN"SUw
Maximum Efficiency : 0.995227 N\uQ-XOi
%M`|0g}!
The system efficiency is the fraction of the energy in the source y:42H tS
beam that exits the optical system. This value is determined by }TF<C !]
the input na, entrance pupil size and position, apodization, .R
gfP'M
transmission of the optics, and vignetting. %eV`};9
! 4oIx`
The receiver efficiency is the fraction of the transmitted energy z=K5~nU
that couples from the exit pupil to the receiving fiber. This
KbUX(9+B
value is determined by aberrations and the na of the receiving fiber. cbwzT0
$U8a p4EXM
The coupling efficiency is the fraction of energy radiated J.nVEqLZ
by the source that couples into the receiver. This is the gM Gg9U$@
product of the system and receiver efficiencies. N Dg]s2T
(C3d<a\:
The maximum efficiency is the coupling efficiency if there )I >r C%2P
were no aberrations. &(rd{j/*
H9>&"=".
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. ?+|tPjg $
耦合效率的计算有一个积分过程,还是比较复杂的.
