| getplmm32 |
2007-05-09 18:51 |
System Efficiency : 0.999138 /JY ph^3][
Js2_&?}3f
Receiver Efficiency : 0.945327 q,h.W JI
4O,a`:d1$6
Coupling Efficiency : 0.944512 (-0.2479 dB) #mF Al|O
T!eh ?^E
Maximum Efficiency : 0.995227 0$dNrq
P`Wf'C^h
The system efficiency is the fraction of the energy in the source L\'qAfR Z
beam that exits the optical system. This value is determined by > 71w
#K
the input na, entrance pupil size and position, apodization, (DaP~*c3cC
transmission of the optics, and vignetting. LCm }v&~%A
B(T4 nH_k
The receiver efficiency is the fraction of the transmitted energy \kRJUX! s
that couples from the exit pupil to the receiving fiber. This E$z q8-p|
value is determined by aberrations and the na of the receiving fiber. we).8%)'
)RKhEm%Vr2
The coupling efficiency is the fraction of energy radiated DB= cc
by the source that couples into the receiver. This is the HC, 0" W
product of the system and receiver efficiencies. {qdhp_~^l
`U>b6 {K
The maximum efficiency is the coupling efficiency if there vM;dPE7
were no aberrations. v7I *W/
s 17gi,"X
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. BGYm]b\j[
耦合效率的计算有一个积分过程,还是比较复杂的.
|
|
