| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 E7$ aT^
GB+$ed5@<
Receiver Efficiency : 0.945327 k7JC~D
E#
G9S3r3
Coupling Efficiency : 0.944512 (-0.2479 dB) klmbbLce
^Cp;#|g,
Maximum Efficiency : 0.995227 h9d*N 9!;M
l/?bXNt
The system efficiency is the fraction of the energy in the source |s#,^ SJ0
beam that exits the optical system. This value is determined by {%2p(5FB
the input na, entrance pupil size and position, apodization, #}6~>A
transmission of the optics, and vignetting. ZHRMW'N e
Eb,M+c?
The receiver efficiency is the fraction of the transmitted energy k'v+/6 Y
that couples from the exit pupil to the receiving fiber. This f/
3'lPK^
value is determined by aberrations and the na of the receiving fiber. U7LCd+Z 5X
W^W.* ?e`
The coupling efficiency is the fraction of energy radiated e9\_H=t+
by the source that couples into the receiver. This is the pw))9~ XU
product of the system and receiver efficiencies. shLMj)7!
0 Swu]OE
The maximum efficiency is the coupling efficiency if there _+}o /449
were no aberrations. [$6YPM>Ee
fG?a"6~
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. E?&YcVA
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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