| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 zb (u?U
Qt$Q/<8U
Receiver Efficiency : 0.945327 FtX Eudk
CpXv?uU
Coupling Efficiency : 0.944512 (-0.2479 dB) ~jaGf
Ho/5 e*X
Maximum Efficiency : 0.995227
xMU )
QX4I+x~oo\
The system efficiency is the fraction of the energy in the source JC-L8 0-
beam that exits the optical system. This value is determined by zc"eSy< w$
the input na, entrance pupil size and position, apodization, FoLw S%+yO
transmission of the optics, and vignetting. +?p ;,Z%5
RK0IkRXQd
The receiver efficiency is the fraction of the transmitted energy h) rHf3:
that couples from the exit pupil to the receiving fiber. This d ?>sy\{2
value is determined by aberrations and the na of the receiving fiber. ]!QeJ 'BLM
T&%>/7I>
The coupling efficiency is the fraction of energy radiated a Sj$62G"
by the source that couples into the receiver. This is the S@_GjCpn
product of the system and receiver efficiencies. H >B:jJf
x]:mc%4-Z
The maximum efficiency is the coupling efficiency if there x ;I*Ho
were no aberrations. 1JM~Ls%Z
Nuj%8om6
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. p0/I}n4<5n
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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