| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 i]-gO IX*S:7S[ Receiver Efficiency : 0.945327 ]6;AK\9TM h]MVFn{ Coupling Efficiency : 0.944512 (-0.2479 dB)
ke#;1 .fsk DW Maximum Efficiency : 0.995227 )ra66E Ntnmd The system efficiency is the fraction of the energy in the source Q Bw
ZfX beam that exits the optical system. This value is determined by cGc|n3( the input na, entrance pupil size and position, apodization, HV9SdJOf transmission of the optics, and vignetting. ,?`1ve_K< f0`'
i[ The receiver efficiency is the fraction of the transmitted energy U>+~.|'V9 that couples from the exit pupil to the receiving fiber. This huoKr value is determined by aberrations and the na of the receiving fiber. q-G|@6O U&n>fXTHn The coupling efficiency is the fraction of energy radiated Wh Zaq by the source that couples into the receiver. This is the c9uT`h product of the system and receiver efficiencies. $
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K=Nm The maximum efficiency is the coupling efficiency if there 8T)zB6ng were no aberrations. k2uiu 9xQ8` 7 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. =[K)<5,@ 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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