Alcatel 1928 OFA
D-WDM Straight-line
Erbium-Doped Fiber Amplifier
Description
The Alcatel 1928 OFA (Optical Fiber
Amplifier) is designed to offer excellent
performance characteristics for WDM
systems in the 1530 - 1560 nm wavelength
range.
The standard, double-stage 17 dBm unit
can be supplemented using an external
pump module to achieve 20 dBm output
power. Tap couplers at each signal port
offer full monitoring capability.
The Alcatel 1928 OFA achieves very flat
gain in excess of 22 dB or 26 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 17
dBm configurations.
Features
鈥?/div>
Optimized for D-WDM transmission
鈥?/div>
Dual-stage 17 dBm basic unit can be
equipped with an external pump module
to offer 20 dBm output power
鈥?/div>
Low noise figure for optimal SNR
鈥?/div>
Flat gain across wide bandwidth range
鈥?/div>
Polarization independent & bit-rate
transparent
鈥?/div>
Optical isolators at input, monitor taps,
and output minimize system susceptibility
to reflection
鈥?/div>
Compact, rugged low profile package
Applications
鈥?/div>
Power booster for D-WDM systems
鈥?/div>
Low-noise in-line amplifier for transport
systems
鈥?/div>
Pre-amplifier for systems in which
dispersion compensation access is not
required.
Optical characteristics
Parameter
Laser pump drive current
Laser pump drive current
Laser Voltage
Photodetector monitor
TEC drive (70擄)
14 dBm basic unit, Pump 980 nm
Symb
I drive
I drive
V drive
I mon
I TEC
100
Min
980
1480
Max
330
875
2.5
2500
1.5
3.8
Unit
mA
mA
V
碌A
A
V
TEC Voltage
V TEC
All parameters are specified within the overall temperature range for BoL
Electrical characteristics
Parameter
Operating wavelength
Output power
External pump power, 1480 nm
Input power [1]
Input power [2]
Noise figure
Polarization mode dispersion
Symb
位
Pout
G
Pin
Pin
NF
PMD
Min
1530
17
NA
-5
-9
<5
0.5
+ 17 dBm
Typical
Max
1560
Min
1530
20
180
-2
-6
< 5.5
0.5
+ 20 dBm
Typical
Max
1560
Unit
nm
dBm
mW
dBm
dBm
dB
ps
dB
Gain flatness
鈭?/div>
G
<1
<1
All parameters are specified within the overall temperature range. The typical values are referenced to + 25 擄C.
[1] gain = 22 dB / [2] gain = 26 dB
Absolute maximum ratings
Parameter
Symbol
Min
Max
Unit
Operating temperature
胃
Oper
-5
+70
擄C
Storage temperature
胃
Stor
-40
+85
擄C
Pump bias current, end of life
1 Drive 1 max
400
mA
Pump bias current, end of life
1 Drive 2 max
1000
mA
Soldering temperature (3s)
胃
Sold
350
擄C
Axial pull force on fiber (10s)
/
10
N
Fiber bend radius from package
/
40
mm
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only.
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