MRV Communications EM316EDFA-LPR Manual de usuario Pagina 35

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Cédric Ware <[email protected]>
2011
Document License
Pum configuration
Phase matching: k
phonon
may be large or small compared to k
opt
for
similar frequencies, so pumping can be copropagating
(k
p
= k
s
+ k
phonon
) or counterpropagating (k
p
= k
s
k
0
phonon
)
But: very fast effect transfers pump noise to signal
If counterpropagating pump, noise ends up averaged over each bit
Counterpropagating pump
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