| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 Ql-RbM
Y$8
> fv
Receiver Efficiency : 0.945327 .Y.\D\>~
Jt6~L5[_s
Coupling Efficiency : 0.944512 (-0.2479 dB) |sWH!:]49
B6tp,Np5,
Maximum Efficiency : 0.995227 AtNu:U$
&E.ckWf
The system efficiency is the fraction of the energy in the source JCNZtWF
beam that exits the optical system. This value is determined by lUX xpv1m
the input na, entrance pupil size and position, apodization, GJW>8*&&(
transmission of the optics, and vignetting. M|e
Qds
l_JPkM(mJw
The receiver efficiency is the fraction of the transmitted energy ol^J-
that couples from the exit pupil to the receiving fiber. This nU$;W
value is determined by aberrations and the na of the receiving fiber. /YYI
4
M/
@1;a@\
The coupling efficiency is the fraction of energy radiated .{as"h-.O
by the source that couples into the receiver. This is the WTi 8
product of the system and receiver efficiencies. aNgaV$|2a
aL @myq.
The maximum efficiency is the coupling efficiency if there & mj98
were no aberrations. e2|2$|
Y*i Yr2?;
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. 0ts]
iQ 7
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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