| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 2-P I JO
svF*@(- P#
Receiver Efficiency : 0.945327 D8a)( wm
2-p8rGI_F
Coupling Efficiency : 0.944512 (-0.2479 dB) & 8zk3
>[
@{$\?x:
Maximum Efficiency : 0.995227 Mi<*6j0
fO0- N>W'P
The system efficiency is the fraction of the energy in the source TjT](?'o
beam that exits the optical system. This value is determined by #T
Z!#,q
the input na, entrance pupil size and position, apodization, ST#PMb'izn
transmission of the optics, and vignetting. ,I("x 2
ws#hhW3qK
The receiver efficiency is the fraction of the transmitted energy 7eTA`@v5A
that couples from the exit pupil to the receiving fiber. This XL= 2wh
value is determined by aberrations and the na of the receiving fiber. < JG Yr 4V
:U7;M}0
The coupling efficiency is the fraction of energy radiated kg zwlKK
by the source that couples into the receiver. This is the TeOFAIU
product of the system and receiver efficiencies. UzXDi#Ky
HW^{ ;'kH~
The maximum efficiency is the coupling efficiency if there oC5gME"2
were no aberrations. $h C~ af6
r#ks>s
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. 7&#'c8]/qh
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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