System Efficiency : 0.999138 2pFOC;tl
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Receiver Efficiency : 0.945327 :7%JD .;W
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Coupling Efficiency : 0.944512 (-0.2479 dB) ?cdSZ'49[
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Maximum Efficiency : 0.995227 Qfo'w%px
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The system efficiency is the fraction of the energy in the source pW O-YZ#+
beam that exits the optical system. This value is determined by '"QC^Joz
the input na, entrance pupil size and position, apodization, {"8\~r &b
transmission of the optics, and vignetting. d}tn/Eu?B
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The receiver efficiency is the fraction of the transmitted energy uHBX}WH
that couples from the exit pupil to the receiving fiber. This WpC@nz?
value is determined by aberrations and the na of the receiving fiber. >1:s.[&
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The coupling efficiency is the fraction of energy radiated (u85$_C
by the source that couples into the receiver. This is the !e6;@ *
product of the system and receiver efficiencies. _=B(jJZ
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The maximum efficiency is the coupling efficiency if there 6"WR}S0o
were no aberrations. `
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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. nk9hQRP?
8
耦合效率的计算有一个积分过程,还是比较复杂的.