System Efficiency : 0.999138 WxN@&g(
$[p<}o/6v]
Receiver Efficiency : 0.945327 ?\
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Coupling Efficiency : 0.944512 (-0.2479 dB) DQ<{FN
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Maximum Efficiency : 0.995227 Y55Yo5<j/+
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The system efficiency is the fraction of the energy in the source aetK<9L$
beam that exits the optical system. This value is determined by E!~Ok
the input na, entrance pupil size and position, apodization, XzX-Q'i=n0
transmission of the optics, and vignetting. )CYm/dk
^*
xhbM;
The receiver efficiency is the fraction of the transmitted energy HF3W,eaqK
that couples from the exit pupil to the receiving fiber. This [r,ZM
value is determined by aberrations and the na of the receiving fiber. $yZ(c#L
IEx`W;V]K
The coupling efficiency is the fraction of energy radiated (-RZ|VdYg
by the source that couples into the receiver. This is the 5pOb;ry")`
product of the system and receiver efficiencies. #s'UA!)
BD)5br].
The maximum efficiency is the coupling efficiency if there 6vx0F?>_
were no aberrations. G lz0`z
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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. @_gCGI>Q
耦合效率的计算有一个积分过程,还是比较复杂的.