System Efficiency : 0.999138 @ce3%`c_
w_GLC%|7
Receiver Efficiency : 0.945327 YLigP"*~^
{>A
8g({i
Coupling Efficiency : 0.944512 (-0.2479 dB) `T`c@A
> R#9\/s
Maximum Efficiency : 0.995227 )6g&v'dq
j 37:
The system efficiency is the fraction of the energy in the source v/x*]c!"`
beam that exits the optical system. This value is determined by rCkYfTYI
the input na, entrance pupil size and position, apodization, J(^
>?d'
transmission of the optics, and vignetting. r.9 $y/5
c9|I4=_K
The receiver efficiency is the fraction of the transmitted energy -h=c =P
that couples from the exit pupil to the receiving fiber. This uFWvtL?;_
value is determined by aberrations and the na of the receiving fiber. GgT=t)}wu
4sI3(z)9H
The coupling efficiency is the fraction of energy radiated V54q"kP,@.
by the source that couples into the receiver. This is the ?$2q P`-
product of the system and receiver efficiencies. A
xRl*B
jzQ9zy_
The maximum efficiency is the coupling efficiency if there 'H|;%J6d>
were no aberrations. "i}Z(_7yr
HK^a:BI
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. GCZu<,
耦合效率的计算有一个积分过程,还是比较复杂的.
