
431MATLAB
®
Simulink
®
Modeling of Raman Amplication and Integration
D = –4ps/nm km
D = 18.5ps/nm km
alpha = 0.17 dB/kmalpha = 0.21 dB/km
alpha = 0.21 dB/kmalpha = 0.21 dB/km
Raman Amp + DCF 60 kmRaman Amp + DCF 60 km
Out1
1
ROA2ROA1
Field
input
Field
Output
Nonamp 28.4 km
EDFA with ASE noise 2
Sig_inOut
DCF—11.5 km
In1
1
Field
input
Field
Output
Field
input
Field
Output
Field
input
Field
Output
FIGURE 10.23
Simulink
®
model of an optically amplied span. EDFA is inserted at the end of each span. Other blocks at the
t
wo
e
nds
a
re
R
aman
a
mplied
t
ransmission
bers,
a
nd
t
he
m
iddle
b
locks
a
re
t
ransmission
s
pans
w
ithout
a
ny
a
mplication provision.
Out2
1
Threshold
demodulated binary ...