| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138
Gp@Y=m U
s8@f Z4
Receiver Efficiency : 0.945327 N 7+K$)3
oo- ^BG
Coupling Efficiency : 0.944512 (-0.2479 dB) KW+ ^9&lA
"Q2[A]4E
Maximum Efficiency : 0.995227 8N c i 1o
I[tU}oj P
The system efficiency is the fraction of the energy in the source $ AG.<
beam that exits the optical system. This value is determined by MI',E?#yB
the input na, entrance pupil size and position, apodization, ^row=5]E
transmission of the optics, and vignetting. YA{Kg c^
>=C)\Yfu)
The receiver efficiency is the fraction of the transmitted energy 1hi^
that couples from the exit pupil to the receiving fiber. This W=I%3F_C"R
value is determined by aberrations and the na of the receiving fiber. z7HC6{g% X
g>OGh o
The coupling efficiency is the fraction of energy radiated I?bL4u$\
by the source that couples into the receiver. This is the ax>en]rNP
product of the system and receiver efficiencies. >[ lj8n
mUcHsCszH
The maximum efficiency is the coupling efficiency if there !Q#u
i[0q
were no aberrations. 0IQu6
X
Br \/7F
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. Qbt
fKn95
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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