| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 %( 1O jfZc
HbegdbTJ
Receiver Efficiency : 0.945327 _Xt/U>N
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Coupling Efficiency : 0.944512 (-0.2479 dB) :YI5O/gsk?
x-m *p^}
Maximum Efficiency : 0.995227 393c |8M
Sv T0%2
The system efficiency is the fraction of the energy in the source b3^:Bh9
beam that exits the optical system. This value is determined by 0+e=s0s.
the input na, entrance pupil size and position, apodization, s`jlE|jtN
transmission of the optics, and vignetting. o{G*7V@H
.;]WcC<3
The receiver efficiency is the fraction of the transmitted energy C gx:6TRS
that couples from the exit pupil to the receiving fiber. This byxlC?q7
value is determined by aberrations and the na of the receiving fiber. {^z73Gxt,
\ZZ6r^99
The coupling efficiency is the fraction of energy radiated XI\Slq
by the source that couples into the receiver. This is the *S ag
product of the system and receiver efficiencies. ?> }p'{I
C < c6Ub
The maximum efficiency is the coupling efficiency if there "pM >TMAE
were no aberrations. z2iM pZ
?$|tT\SF V
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. d}\]!x3t
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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