System Efficiency : 0.999138 uRQm.8b
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Receiver Efficiency : 0.945327 9/RbfV[)
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Coupling Efficiency : 0.944512 (-0.2479 dB) "';'*x
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Maximum Efficiency : 0.995227 uYS?# g
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The system efficiency is the fraction of the energy in the source =V1k'XJ
beam that exits the optical system. This value is determined by Rs:<'A
the input na, entrance pupil size and position, apodization, UnZ*"%
transmission of the optics, and vignetting. =eSG7QfS
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The receiver efficiency is the fraction of the transmitted energy y>u+.z a|
that couples from the exit pupil to the receiving fiber. This |^Z1 D TAw
value is determined by aberrations and the na of the receiving fiber. %lV&QQa
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The coupling efficiency is the fraction of energy radiated N<:5 r
by the source that couples into the receiver. This is the t(CdoE,6
product of the system and receiver efficiencies. '!Vn
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The maximum efficiency is the coupling efficiency if there 3~BL!e,
were no aberrations. %$I\\qq>{
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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. 0^|)[2m!
耦合效率的计算有一个积分过程,还是比较复杂的.