Description
The Alcatel 1926 OFA (Optical Fiber
Amplifier) is designed to offer excellent
Performance characteristics for WDM
systems in the 1529.1 - 1561.8 nm wave-
length range.
The standard, double-stage 17 dBm unit
can be supplemented using external pump
modules to achieve out p uts of 20 dBm or
23 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 1926 OFA achieves very flat
gain in excess of 23 dBm or
26 dBm, while limiting gain excursion to <
1 dB (ty pical) over the entire
32.7 nm wavel ength range.
Optimization of the architecture yields
very low typical noise figures < 5 dB for
the 17 & 20 dBm configurations.
Features
• Optimized for D-WDM transmissi on
• Dual-stage 17 dBm basic unit can be
equipped with external pump modules to
offer 20 or 23 dBm
• Low-noi se figure for optimal SNR
• Flat gain across wide bandwidth range
• Integrated 9 dB mid-amplifier loss port
allows ADM funct ional customiz ation
• Polarization independent & bit-rate
transparent
• Optical isolators at input , monitor taps,
and outputs minimize system
susceptibility to reflection
• Compact, rugged low profile package
Applications
• Used in telecommunications and Power
booster for D-WDM systems
• Optical Add / Drop Multiplexer
• Low-noise in-line amplifier for transport
systems. Links
Optical characteristics
Parameter Symb Min Typical Max Min Typical Max Min Typical Max Unit
Configurati on + 17 dBm + 20 dBm + 23 dBm
Operating wavelength λ1529.1 1561.8 1529.1 1561.8 1529.1 1561.8 nm
Output power Pout 17 20 23 dBm
External pump power, 1480 nm G NA 180 500 mW
Input power for 28 dB gain Pin - 11 - 8 - 5 dBm
Input power for 23 dB gain Pin - 6 - 3 0 dBm
Noise figure NF < 5 < 5 ≤ 5.5 dB
Polarization mode dispersion PMD 0.5 0.5 0.5 ps
Gain flatness ∆G< 1< 1< 1dB
All parameters are specified within the overall relevant operating temperature range. T he typica l v a lues are referenced to + 25 °C.
Electrical characteristics
Parameter Symb Min Max Min Max Unit
Laser pump drive current (*) I drive 360 875 mA
Laser voltage V drive 2.5 2.5 V
Photodetector monitor I mon 100 2500 100 2500 µA
TEC drive (70°) I TEC 1.5 1.5 A
TEC voltage V TEC 3.8 4.2 V
(*) first : 980 nm, second : 1480 nm. All parameters are specified within the overall temperature range for BoL.
Absolute maximum ratings
Parameter Symbol Min Max Unit
Operating temperature θ Oper -5 +70 °C
Stora g e temper a ture θ Stor -40 +85 °C
1st stage pump bias current, end of life 1 Drive 1 max 400 mA
2st stage pump b ias cu rrent, end of life 1 Drive 2 max 1000 mA
Solderi n g tempera ture (3s) θ Sold 350 °C
Axial pull force on fiber (10s) / 10 N
Fiber bend radius from package / 400 mm
Stresses in excess of the absolute maximum ra tings can cause permanent dama ge to the device. These are absolute stress ratings only.
A
lcatel 1926 OF A
D-WDM, Add Drop MUX
Erbium-Doped Fiber Amplifier
Mechanical details
125 x 100 x 19 mm
September 00
Copyright © 2000
Alcatel Optronics
Customized versions are available for
large quantities.
Performance figures contained in this
document must be specifically
confirmed in writing by Alcatel
Optronics before they become
applicable to any particular order or
contract . Alcatel O ptronics reserves the
right to make changes to the products
or information contained herei n
without notice.
Pin out
N° Description
1 Pump 1 cooler -
2 Pump 1 cooler -
3Pump 1 laser cathode
4 Pump 1 laser anode
5 Pump 2 cooler +
6 Pump 2 cooler +
7Pump 2 Thermistor
8Pump 2 Thermistor
9 Pump 2 monitor cathode
10 Pump 2 monitor anode
11 Pump 1, 2, EDFA case
12 Not Connected
13 Pump 1 cooler +
14 Pump 1 cooler +
15 Pump 1 Thermist or
16 Pump 1 Thermist or
17 Pump 1 monitor cathode
18 Pump 1 monitor anode
19 Pump 2 cooler -
20 Pump 2 cooler -
21 Pump 2 laser anode
22 Pump 2 laser cathode
Ordering information
Alcatel 1926 OFA
Part Description Connector
number type
3CN 00423 AA 17dBm 23/9 basic unit (see
3CN 00364 AB 17dBm 28/9 basic unit above)
Description
1 Red, SC/PC; 2n d stage o utpu t
2 White, SC/PC; stage 2 output tap
3 Blue, SC/PC; stage 1 input
4 Black, SC/PC; stage 1 input tap
5 Grey, SC/PC; stage 1 output tap
6 Orange, SC/PC; stage 1 output
7 Green, SC/PC; 2nd stage input
8 Brown, SC/PC; stage 2 input tap
9 Yellow, SC/APC; external pump input
Standards
ITU-T G.652 optical fiber
ITU-T G.653 shifted dispersion fiber
IEC 68-2 and MIL STD 883 environment
LASER RADIATION
AVOID EXPOSURE TO BEAM
Class 3 B laser product
ATTENTION
OBSERVE
PRECAUTIONS FOR
HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE DEVICES
EUROPE
Route de Ville just
F-91625 NOZAY CEDEX
Tel : (+33) 1 64 49 49 10
Fax : (+33) 1 64 49 49 61
USA
12030 Sunrise Valley Drive
RESTON - VA 22091-3495
Tel : (+1) 703 715 3921
Fax : (+1) 703 860 1183
CANADA
45, De Villebois, suite 200
Gatineau (PQ)
Canada, J8T 8J7
Tel : (+1) 819 243 3755
Fax : (+1) 819 243 3354
JAPAN
Yebisu Garden Place Tower
PO Box 5024
20-3, Ebisu 4 - Chome
Shibuya - ku TOKYO 150 - 6028
Tel : (+81) 3 5424 85 65
Fax : (+81) 3 5424 85 81
