Optical Amplifier Platform, 1724-Type
Erbium-Doped Fiber Amplifier (W Series)
Data Sheet, Rev. 1
September 2001
Designed for use in DWDM applications, the standard
W1724-Type EDFA incorporates a DB-25 connector and a
microcontroller with TTL compatible alarm monitoring.
Features
s
Gain-flattened spectral response
s
High saturation output power, > 22 dBm
s
Low power consumption, < 12 W @ 45 C
s
Low noise
s
Single 5 V operation
s
Wide input signal bandwidth
s
Wide operating temperature range, 0
C to 65
C
s
Optical input and output taps
s
Isolated input and output
s
Programmable input and output monitors
s
Connectorized single-mode fiber pigtail
s
Standard serial communication channels
Applications
s
Designed specifically for DWDM applications
s
Booster/power amplifier
s
Line amplifier
Description
The W1724-Type Erbium-Doped Fiber Amplifier
(EDFA) has been designed for use in DWDM applica-
tions and offers the following performance features:
s
Flat gain profile over a wide temperature range
s
Low noise figure
s
High output power
s
Automatic gain lock
The versatile W1724-Type EDFA operates over a
wide temperature range, exhibits extremely low
power dissipation, and offers a variety of alarms and
monitors. Optimum performance and system stability
are supported through the use of optical isolation at
the input and output. Optical input and output are
through single-mode fiber pigtails terminated with
optical connectors.
The EDFA incorporates optical input and output taps
that are monitored via an integral microcontroller.
Significant performance benefits are achieved with
the microcontroller, which stabilizes the temperature
of the pumps and maintains constant gain of the
amplifier.
Contact your Account Manager at Agere Systems
Inc. to discuss electrical or optical connector options
not listed in the Ordering Information section.
2
2
Agere Systems Inc.
Data Sheet, Rev. 1
Optical Amplifier Platform, 1724-Type
September 2001
Erbium-Doped Fiber Amplifier (W Series)
Standard Features
The standard W1724-Type EDFA incorporates the opti-
cal architecture illustrated in Figure 1. The standard
features include:
s
Exceptional performance benefits with the integral
microcontroller, which precisely controls the gain to
maintain a flat spectral response over various input
powers.
s
Single 5 V power supply eliminates the need for dual
voltage source circuits.
s
DB-25 electrical connector allows for easy electrical
connectivity.
s
Optical input tap enables input monitoring and con-
trol.
s
SC/PC optical connector.
s
Low power dissipation.
s
Alarms:
-- Loss of input power alarm.
-- Loss of output power alarm.
-- Pump bias alarm (>95% of EOL value).
-- Pump temperature alarm (T
L
> 35 C).
-- EDFA temperature alarm (T
C
> 60 C).
s
Advanced microprocessor design requires minimal
engineering for a shelf-level product.
s
Standard mechanical outline includes metric screws
and fiber outputs (using SC/PC optical connectors)
at 180 degrees relative to a DB25 electrical connec-
tor. The standard product does not include a heat
sink.
TTL-Compatible Alarm Outputs
Loss of Input Power Alarm
If the input power is more than 2 dBm below the mini-
mum P
IN
, the loss of input power alarm (pin 19) will
activate (TTL-logic 1).
Loss of Output Power Alarm
If the output power decreases by more than 2 dB from
its beginning-of-life value, the loss of output power
alarm (pin 8) will activate (TTL-logic 1).
Pumps Temperature Alarm
If the laser temperature for the pump(s) exceeds 35
C,
the pump temperature alarm (pin 10) will activate (TTL-
logic 1).
Pumps Bias Alarm
If the bias current for the pump(s) exceeds 95% of its
EOL value, the pump bias alarm (pin 9) will activate
(TTL-logic 1).
EDFA Temperature Alarm
If the case temperature exceeds 60 C, then the
EDFA temperature alarm (pin 7) will activate (TTL-
logic 1).
Optional Features
Other feature and package options for the W1724-Type
EDFA include:
s
Alternative optical connectors
s
Integral heat sink
3
Agere Systems Inc.
Optical Amplifier Platform, 1724-Type
Data Sheet, Rev. 1
Erbium-Doped Fiber Amplifier (W Series)
September 2001
Block Diagram
Figure 1. W1724-Type EDFA Block Diagram
Pin Information
1. Do not connect to reserved pins.
2. Normal = TTL low, alarm = TTL high if the output power falls 2 dB below the minimum value.
3. Normal = TTL low, alarm = TTL high if pump bias exceeds 95% of its end-of-life value.
4. Normal = TTL low, alarm = TTL high if pump temperature exceeds 35 C.
5. The EDFA is equipped with an optical transient suppression feature when this pin is tied to GND. The EDFA will turn all pumps off, if the
input power is too low. Tying this pin to 5 V will disable this feature; however, damage to the optical connectors and components may occur if
the amplifier is turned on without the presence of an optical signal.
6. Normal = TTL low, alarm = TTL high if input power is less than 2 dB below minimum P
IN
.
7.
Amplifier enable (all pumps are on) = TTL low, amplifier disable (all pumps are off) = TTL high.
Table 1. Pin Descriptions for a Microcontrolled (Full) Amplifier
Pin
Description
Pin
Description
1
5.0 V (0.25 V)
14
GND
2
5.0 V (0.25 V)
15
GND
3
5.0 V (0.25 V)
16
GND
4
5.0 V (0.25 V)
17
GND
5
Reserved
1
18
RS-232 OUT (TTL)
6
Reserved
1
19
Loss of Input Power Alarm
6
7
EDFA Temperature Alarm
20
Reserved
1
8
Loss of Output Power Alarm
2
21
Amplifier Disable Input
7
9
Pumps Bias Alarm
3
22
RS-232 IN (TTL)
10
Pumps Temperature Alarm
4
23
Reserved
1
11
EDFA Shutdown Override
5
24
5.0 V (0.25 V)
12
5.0 V (0.25 V)
25
GND
13
GND
--
--
INPUT TAP
OPTICAL GAIN
OUTPUT TAP
PD #2
MICROCONTROLLER
PD #1
OPTICAL
OPTICAL
INPUT
SIGNAL
OUTPUT
SIGNAL
OUTPUT POWER
MONITOR
INPUT POWER
MONITOR
1-904 (C)
4
Agere Systems Inc.
Data Sheet, Rev. 1
Optical Amplifier Platform, 1724-Type
September 2001
Erbium-Doped Fiber Amplifier (W Series)
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Electrical Characteristics
Table 2. Power Supply
* Typical operating characteristics: V
PS1
= 5.0 V, T
C
= 35 C.
Table 3. TTL Inputs/Outputs
Under normal operating conditions, the various alarm outputs will be TTL level low. If the corresponding parameter
is outside a predesignated range, the associated alarms will become TTL level high.
Parameter
Symbol
Min
Typ
Max
Unit
Storage Temperature
T
stg
40
20
70
C
Operating Case Temperature
T
C
0
35
65
C
Absolute Humidity
--
--
--
0.024
lbs. H
2
O/lbs. dry air
Parameter
Symbol
Min
Typ*
Max
Unit
dc Power Supply Voltage
V
PS1
4.75
5.0
5.25
V
Power Supply Current
(beginning of life)
I
PS1
--
1.0
--
A
Power Supply Current
(end of life)
I
PS1
--
--
1.9
A
Electrical Power Consumption
(beginning of life)
--
--
5.0
--
W
Electrical Power Consumption
(end of life)
--
--
--
10.0
W
Parameter
Symbol
Min
Typ
Max
Unit
Input Voltage:
High
Low
V
IH
V
IL
2
--
--
--
--
0.8
V
V
Output Voltage:
High
Low
V
OH
V
OL
2.4
0
--
0.1
--
0.4
V
V
Input Current:
High
Low
I
IH
I
IL
--
--
--
--
1
1
A
A
Output Current:
High
Low
I
OH
I
OL
--
--
--
--
4
20
mA
A
5
Agere Systems Inc.
Optical Amplifier Platform, 1724-Type
Data Sheet, Rev. 1
Erbium-Doped Fiber Amplifier (W Series)
September 2001
Optical Characteristics
Table 4. Performance Specifications for W Series
Parameter
Symbol
Min
Typ
Max
Unit
Signal Wavelength Range:
W1724CDDAD
W1724CBBAD
W1724CBBAH
L
1530
1549.32
1549.32
--
--
--
1560
1560.61
1560.61
nm
nm
nm
Gain Flatness:
W1724CDDAD
W1724CBBAD
W1724CBBAH
GF
--
--
--
1.3
--
--
2.0
1.5
1.5
dB
dB
dB
Intput Power:
W1724CDDAD
W1724CBBAD
W1724CBBAH
P
IL
17
20
28
--
--
--
8
8
16
dBm
dBm
dBm
Output Power:
W1724CDDAD
W1724CBBAD
W1724CBBAH
P
OUT
8
4.5
4.5
--
--
--
17
17.8
17.8
dBm
dBm
dBm
Noise Figure:
W1724CDDAD
W1724CBBAD
W1724CBBAH
NF
--
--
--
5.0
--
--
6.0
5.5
5.5
dB
dB
dB
Optical Isolation
--
25
--
--
dB
Return Loss
RL
--
--
40
dB
Reverse ASE Power Level
P
ASE,R
--
--
20
dBm
Polarization-mode Dispersion
PMD
--
--
1.0
ps
Polarization-dependent Gain
PDG
--
--
0.5
dB
6
Agere Systems Inc.
Data Sheet, Rev. 1
Optical Amplifier Platform, 1724-Type
September 2001
Erbium-Doped Fiber Amplifier (W Series)
Outline Drawings
W1724-Type EDFA Package
Dimensions are in inches and (millimeters).
0.44
(11.2)
DB 25
CONNECTOR
MALE
ESD
LABEL
PIN 1
0.12
4.660
0.41
5.074
MOUNTING HOLES
DANGER
LABELS AS
0.90
(22.9)
3.10
(78.7)
5.90
(149.9)
HEATSINK MOUNTING HOLES
M3 x 0.5, 4.5 mm DEEP
5 PLACES
0.165
(4.19)
4.57
(116.08)
4.90
(124.5)
2.285
(58.04)
5.570
(141.48)
3.795
(96.39)
0.17
(4.2)
0.76
(19.3)
0.83
(21.1)
0.03
(0.8)
INFORMATION LABEL
(118.36)
LABEL
(10.4)
(128.88)
(3.0)
M3 x 0.5, 5 mm DEEP
4 PLACES
REQUIRED
1-997(F)
7
Agere Systems Inc.
Optical Amplifier Platform, 1724-Type
Data Sheet, Rev. 1
Erbium-Doped Fiber Amplifier (W Series)
September 2001
Outline Drawings
(continued)
Optional Package Configuration: W1724-Type EDFA Package with Integral Heat Sink
Dimensions are in inches and (millimeters).
0.123
(3.12)
0.38
(9.5)
CUSTOMER
LABEL
LASER WARNING
LABEL
1.500
(38.10)
0.033
(0.84)
4.660
(118.36)
0.41
(10.5)
5.90
(149.9)
5.074
(128.88)
3.94
(100.1)
0.98
(24.8)
MOUNTING HOLES
M3 x 0.5, 5 mm DEEP
AS NOTED BY DIMPLE
4 PLACES
AGERE SYSTEMS
Breinigsville, Pennsylvania
USA
DATE MANUFACTURED:
NOVEMBER 1997
0.76
(19.3)
1.850
(46.99)
1.53
(38.9)
4.91
(124.7)
0.44
(11.2)
DB 25
CONNECTOR
(MALE)
PIN 1
DANGER
1-998(C)
8
Agere Systems Inc.
Data Sheet, Rev. 1
Optical Amplifier Platform, 1724-Type
September 2001
Erbium-Doped Fiber Amplifier (W Series)
Ordering Information
Table 5. Ordering Information*
* Contact your Account Manager to discuss your requirements. (If you do not know your Account Manager, please call the Optoelectronics unit
at Agere Systems directly at (610) 391-2520.)
Related Product Information
Device Code
Po
Connector
Heat Sink
Comcode
W1724CDDAD
17.0 dBm
FC/PC
Yes
108358433
W1724CBBAD
17.0 dBm
SC/PC
No
108338674
W1724CBBAH
17.0 dBm
SC/PC
No
108396102
Table 6. Related Product Information
Description
Part Number
Document Number
High-Speed Lightwave Receiver
1319-Type
DS97-106LWP
Lithium Niobate Modulator
--
DS98-110LWP
Electroabsorption Modulated Isolated Laser Module
E2500-Type
DS98-368LWP
1.5
m Isolated DFB Laser Module
D2500-Type
DS98-339LWP
1.3
m Isolated DFB Laser Module
D2300-Type
DS97-122LWP
0.98
m Pump Laser Module
263-Type
DS99-199LWP
Long-Wavelength PIN Photodetectors
131-Type
DS98-206LWP
Interfacing the 1724-Type Microprocessor-Controlled
Erbium-Doped Fiber Amplifier via a Serial Communication Port
1724-Type AP99-020LWP
1725-Type Gain Block Erbium-Doped Fiber Amplifier
1725
DS00-271LWP
Optical Amplifier Platform, 1730-Type Erbium-Doped Fiber
Amplifier
S1730-Type
DS99-353LWP
Extended Band (L-Band) 1735-Type Gain Block Erbium-Doped
Fiber Amplifier
1735-Type
DS00-113OPTO
9
Agere Systems Inc.
Optical Amplifier Platform, 1724-Type
Data Sheet, Rev. 1
Erbium-Doped Fiber Amplifier (W Series)
September 2001
Laser Safety Information
FDA/CDRH Class IIIb and
IEC
60825 Class 3B laser product.
All versions of the product are FDA/CDRH Class IIIb laser products. The product complies with the U.S. Code of
Federal Regulations (CFR), Title 21, Part 1040.10 and 1040.11 laser product regulations.The product is registered/
certified with the FDA under accession number 9320325.
All versions are Class 3B laser products per
IEC
60825-1:1993.
Optical Specifications
Optical fiber: single-mode, 8.8
m/125
m (mode field/cladding diameter) pigtail with connector.
Nominal wavelength: 1550 nm.
Absolute maximum output power: <500 mW.
Product is not shipped with power supply.
CAUTION: Use of controls, adjustments, and procedures other than those specified herein may result in
hazardous laser radiation exposure.
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
Avoid exposure to beam
Class 3B Laser Product IEC-60825 1993
Max. Output: 500 mW
Wavelength: 1.55
m
LASER APERTURE
DA NG ER
INVISIBLE LASER RADIATION
AVOID DIRECT EXPOSURE TO BEAM
M ax. Output: 500 m W,
Wavelength: 1.5
m
Class IIIb Laser Product
DANGER
INVISIBLE LASER RADIATION
IS EMITTED FROM THE END
OF FIBER OR CONNECTOR
Avoid direct exposure to beam
Do not view beam directly with
optical instruments
Data Sheet, Rev. 1
Optical Amplifier Platform, 1724-Type
September 2001
Erbium-Doped Fiber Amplifier (W Series)
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Copyright 2001 Agere Systems Inc.
All Rights Reserved
September 2001
DS00-123OPTO-1 (Replaces DS00-123OPTO)
For additional information, contact your Agere Systems Account Manager or the following:
INTERNET:
http://www.agere.com
E-MAIL:
docmaster@agere.com
N. AMERICA:
Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)
ASIA:
Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon
Tel. (852) 3129-2000, FAX (852) 3129-2020
CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen)
JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, TAIWAN: (886) 2-2725-5858 (Taipei)
EUROPE:
Tel. (44) 7000 624624, FAX (44) 1344 488 045
IEC
is a registered trademark of the International Electrotechnical Commission.
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