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EM316EDFA-LPR
Manual do Utilizador
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Cédric
Wa
re
<
[email protected]
>
2011
Document
License
Intro
duction
High-sp
eed
wired
communications:
optical
fib
ers
Prima
ry
limiting
facto
r:
attenuation
λ
(nm)
(dB/km)
1550
nm
C
L
A
ttenuation
0.2
dB/km
E
S
O
U
1
1000
1100
1200
1300
1500
0.2
0.3
1600
0.5
1400
1
2
3
4
5
6
7
...
40
41
Optical amplifiers
1
Introduction
2
Optical amplification
4
Parameters of an amplifier
5
Gain and saturation
6
Amplification noise
7
⇒ Strong influence on NF
8
Signal distortions
9
Packaging
10
Functionalities of amplifiers
11
Typical usage configurations
12
Needs for different usages
13
Erbium-doped fiber amplifiers
14
EDFA: gain spectrum
15
Gain-flattening filters
16
EDFA: pumping
17
EDFA characteristics
18
Modern EDFAs
19
EDFA packaging
20
Other doped-glass amplifiers
21
Page 22 / 40
22
Document License
22
SOA packaging
23
SOA characteristics
24
Bulk SOAs
25
Quantum-dot SOAs
26
NRZ signal
27
SOAs: comeback
28
SOA improvements
29
New SOA usages
30
Vibration
31
(2 photons) (1 photon)
31
Phonon types
32
Brillouin scattering
33
Detuning
34
Raman gain
34
0 10 20 30 40
34
Pum configuration
35
Page 36 / 40
36
⇒ Multiple pumps
37
C-band EDFA + Raman
38
Amplifiers vs applications
39
References, further reading
40
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