| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 - xU4s
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Receiver Efficiency : 0.945327 HY7#z2L
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Coupling Efficiency : 0.944512 (-0.2479 dB) sxU
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Maximum Efficiency : 0.995227 Z[zRZ2'i5
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The system efficiency is the fraction of the energy in the source &\M<>>IB
beam that exits the optical system. This value is determined by t\\`#gc9~i
the input na, entrance pupil size and position, apodization, X?OH//co
transmission of the optics, and vignetting. GUqBnRA8j
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The receiver efficiency is the fraction of the transmitted energy p6W|4_a?
that couples from the exit pupil to the receiving fiber. This nHF%PH#|o
value is determined by aberrations and the na of the receiving fiber. &X
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The coupling efficiency is the fraction of energy radiated :5BVVa0oR
by the source that couples into the receiver. This is the Y`!Zk$8
product of the system and receiver efficiencies. - 1tiy.^$F
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The maximum efficiency is the coupling efficiency if there _tQR3I5
were no aberrations. $~<]G)*Z
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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. h7F5-~SpD
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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