| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 k~ `pV/6
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Receiver Efficiency : 0.945327 DN;g2 R`f
-% 5*c61
Coupling Efficiency : 0.944512 (-0.2479 dB) %%G2w6 3M
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Maximum Efficiency : 0.995227 5^ARC^v
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The system efficiency is the fraction of the energy in the source Q O[!
beam that exits the optical system. This value is determined by } NMA($@A
the input na, entrance pupil size and position, apodization, #i %it
transmission of the optics, and vignetting. -ce N}Cb3
[v^T]L
The receiver efficiency is the fraction of the transmitted energy K ``MS
that couples from the exit pupil to the receiving fiber. This b" 1a7
value is determined by aberrations and the na of the receiving fiber. Rf^$?D&^
*C z>r} W
The coupling efficiency is the fraction of energy radiated 4`I2tr
by the source that couples into the receiver. This is the )iNM jg
product of the system and receiver efficiencies. 3%bCv_6B
.__XOd} K
The maximum efficiency is the coupling efficiency if there YiJnh 47
were no aberrations. MRR 5j;4GK
Ew5(U`]
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. UOJx-o!c?
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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