Alcatel 1925 OFA
D-WDM, Add Drop MUX
Erbium-Doped Fiber Amplifier
Description
Features
The Alcatel 1925 OFA (Optical Fiber
Amplifier) is designed to offer excellent
performance characteristics for WDM
systems in the 1530 - 1560 nm wave-
length range.
The standard, double-stage 14 dBm unit
can be supplemented using external
pump modules to achieve outputs of
17 dBm or 20 dBm.
A 9 dB mid-amplifier loss port has been
designed in to allow for A/DMUX
functions, dispersion compensation, etc.
Tap couplers at each signal port offer
full monitoring capability.
The Alcatel 1925 OFA achieves very
flat gain in excess of 28 dB, while
limiting gain excursion to < 1 dB
(typical) over the entire 30 nm
wavelength range.
Optimization of the architecture yields
very low typical noise figures < 5 dB for
the 14 & 17 dBm configurations.
鈥?Optimized for D-WDM transmission
鈥?Dual-stage 14 dBm basic unit can
be equipped with external pump
modules to offer 17 or 20 dBm
鈥?Low-noise figure for optimal SNR
鈥?Flat gain across wide bandwidth
range
鈥?Integrated 9 dB mid-amplifier loss port
allows ADM functional customization
鈥?Polarization independent & bit-rate
transparent
鈥?Optical isolators at input, monitor
taps, and outputs minimize system
susceptibility to reflection
鈥?Compact, rugged low profile package
Applications
鈥?Power booster for D-WDM systems
鈥?Optical Add / Drop Multiplexer
鈥?Low-noise in-line amplifier for
transport systems.
Optical characteristics
Parameter,
Configuration
Operating wavelength
Output power
External pump power, 1480 nm
Input power
Noise figure
Polarization mode dispersion
Gain flatness
Symb
Pout
G
Pin
NF
PMD
G
+ 14 dBm
Min Typical Max
1530
14
NA
- 14
<5
0.5
<1
1560
+ 17 dBm
Min Typical Max
1530
17
80
- 11
<5
0.5
<1
1560
+ 20 dBm
Min Typical Max
1530
20
200
-8
鈮?/div>
5.5
0.5
<1
1560
Unit
nm
dBm
mW
dBm
dB
ps
dB
All parameters are specified within the overall relevant operating temperature range.
The typical values are referenced to +25 擄C.
Electrical characteristics
14 dBm basic unit
Parameter
Laser pump drive current
Laser voltage
Photodetector monitor
TEC drive (70 擄)
TEC voltage
Pump 1
980 nm
Symb
I drive
V drive
I mon
I TEC
V TEC
Pump 2
1480 nm
Max
330
2.5
2500
1.4
3.8
Min
Min
Max
600
2.5
2250
1.3
4.2
Unit
mA
V
碌A
A
V
270
100
All parameters are specified within the overall temperature range for BoL.
1
2
