| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 -J`VXG:M
TA~FP#.
Receiver Efficiency : 0.945327 ZJod=^T
#C`IfP./
Coupling Efficiency : 0.944512 (-0.2479 dB) |E(`9
b}C6/ zW
Maximum Efficiency : 0.995227 PlX6,3F
*%(BE*C}
The system efficiency is the fraction of the energy in the source ?kF_C,k/>N
beam that exits the optical system. This value is determined by fl4z'8P"(
the input na, entrance pupil size and position, apodization, #\{j/{VZ
transmission of the optics, and vignetting. ^T.ic S xP
V t [Kr
The receiver efficiency is the fraction of the transmitted energy _P:}]5-|
that couples from the exit pupil to the receiving fiber. This j@98UZ{g\
value is determined by aberrations and the na of the receiving fiber. G(*7hs
'A#bBn,|
The coupling efficiency is the fraction of energy radiated %" C%p A
by the source that couples into the receiver. This is the 9?6]Z ag
product of the system and receiver efficiencies. "L)=Y7Dx
d$;1%rRj8
The maximum efficiency is the coupling efficiency if there 5TB==Fj ?
were no aberrations. -!s?d5k")
/ll2lyS+
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. UD+r{s/%
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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