System Efficiency : 0.999138 ~G@NWF?7
Pz]WT1J0
Receiver Efficiency : 0.945327 ;qx#]Z0 <
, 5'o>Y
Coupling Efficiency : 0.944512 (-0.2479 dB) u ExLj6
v|?@k^Ms
Maximum Efficiency : 0.995227 u Lms0r\@!
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The system efficiency is the fraction of the energy in the source jKS j );
beam that exits the optical system. This value is determined by d[9,J?'OQ
the input na, entrance pupil size and position, apodization, MVatV[G
transmission of the optics, and vignetting. QE<Z@/V*a
w7)pBsI
The receiver efficiency is the fraction of the transmitted energy I2}W /}
that couples from the exit pupil to the receiving fiber. This N,t9X7G&
value is determined by aberrations and the na of the receiving fiber. KbJ6U75|f
w+ $$u z
The coupling efficiency is the fraction of energy radiated PZ[-a-p40
by the source that couples into the receiver. This is the ZvY"yl ?e
product of the system and receiver efficiencies. 1nVQYqT _
]l7W5$26 @
The maximum efficiency is the coupling efficiency if there "tEp8 m
were no aberrations. lH fZw})d
+Z#=z,.^
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. FlO?E3d
耦合效率的计算有一个积分过程,还是比较复杂的.
