| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 F@b=S0}K
HPX JRQBE
Receiver Efficiency : 0.945327 A!v:W6yiz
cAn_:^
Coupling Efficiency : 0.944512 (-0.2479 dB) d5"rCd[
+ }
y"S -
Maximum Efficiency : 0.995227 IQWoK"B
P7epBWqDP
The system efficiency is the fraction of the energy in the source Khh}flRy
beam that exits the optical system. This value is determined by } "&Ye
the input na, entrance pupil size and position, apodization, +*IRI/KUD
transmission of the optics, and vignetting. 3 TRG] 5
B%WkM\\!^
The receiver efficiency is the fraction of the transmitted energy VsDY,=Ww
that couples from the exit pupil to the receiving fiber. This 3i#'osq
value is determined by aberrations and the na of the receiving fiber. +q%b'!&Q
9TZ 6c
The coupling efficiency is the fraction of energy radiated @V Sr'?7-
by the source that couples into the receiver. This is the j XYr&F
product of the system and receiver efficiencies. $|N \(}R
4+Jf!ovS=
The maximum efficiency is the coupling efficiency if there (v&iXD5t
were no aberrations. 6 $K@s
p /HGI)'
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. Svdmg D!
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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