System Efficiency : 0.999138 ZO $}m?
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Receiver Efficiency : 0.945327 SD^6ib/]b
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Coupling Efficiency : 0.944512 (-0.2479 dB) "!6 Ax-'
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Maximum Efficiency : 0.995227 4X2/n
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The system efficiency is the fraction of the energy in the source .q1OT>
beam that exits the optical system. This value is determined by "p~1|?T
the input na, entrance pupil size and position, apodization, *gC6yQ2?
transmission of the optics, and vignetting. 6
2r%q^r`i
u@$C i/J*
The receiver efficiency is the fraction of the transmitted energy {uRnZ/m
that couples from the exit pupil to the receiving fiber. This AtN=G"c>_
value is determined by aberrations and the na of the receiving fiber. +SSF=]4+
iS^IqS
The coupling efficiency is the fraction of energy radiated 5h^U ]Y#
by the source that couples into the receiver. This is the e8@@Pi<sB
product of the system and receiver efficiencies. KN;b+`x;M
PXk+Vi,%k
The maximum efficiency is the coupling efficiency if there Ii,Lj1Q
were no aberrations. b:nHcxDU<
?2;r#)
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. yU~OfwQ
耦合效率的计算有一个积分过程,还是比较复杂的.