| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 2 =1qmQE
&h=f
Receiver Efficiency : 0.945327 F6:LH,~8
%dhrXK5
Coupling Efficiency : 0.944512 (-0.2479 dB) |tTcJ\bG
TB84}
Maximum Efficiency : 0.995227 ((^v sKT
^BW8zu@=O
The system efficiency is the fraction of the energy in the source #cb9g
beam that exits the optical system. This value is determined by 8H8Q
the input na, entrance pupil size and position, apodization, Kq+vAp).
transmission of the optics, and vignetting. ;<xPzf
'GO *6$/
The receiver efficiency is the fraction of the transmitted energy ~~I]SI k{
that couples from the exit pupil to the receiving fiber. This T|
R!Aw.
value is determined by aberrations and the na of the receiving fiber. _.%g'=14f
n,_9Eh#WD
The coupling efficiency is the fraction of energy radiated ` 1y @c"t
by the source that couples into the receiver. This is the Y|W#VyM-
product of the system and receiver efficiencies. HW" 5MZ8E
PQz[IZ
The maximum efficiency is the coupling efficiency if there v3kT~uv
were no aberrations. m"AyO"}I5
&?}h)U#:
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. ]5MT-qU
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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