Advance Data Sheet
February 2000
D572-Type 1.5
µ
m Uncooled DFB
FastLight
™
Laser Module
for 2.5 Gbits/s and High Bandwidth Applications
Applications
s
s
s
SONET OC-48/STM-16 systems
Telecommunications
Secure digital data systems
Benefits
s
s
s
s
Easily board mounted
Gull-wing leads
No additional heat sinks required
Low-cost alternative to industry-standard, 14-pin
isolated laser module (ILM)
Highly efficient DFB-MQW laser structure allows
for lower threshold and drive currents, and reduced
power consumption
s
The low-profile D572-Type Laser Module is ideally suited for
OC-48 SONET and other high-speed digital applications.
Features
s
s
Description
The D572-Type Uncooled Laser Module consists of a
laser diode coupled to a single-mode fiber pigtail.
The device is available in a standard, 8-pin configu-
ration (see Figure 1 and/or Table 1) and is ideal for
long-reach (SONET) and other high-speed digital
applications.
The module includes a narrow linewidth (<1 nm)
DFB-MQW single-mode laser and an InGaAs PIN
photodiode back-facet monitor in a hermetically
sealed package.
This package is optimized for a 25
Ω
input imped-
ance and allows for dc biasing through an internal
bias tee. A thermistor has been included for feedback
to board-level bias circuitry, if needed.
*
Telcordia Technologies
is a trademark of Bell Communications
Research, Inc.
8-pin package suitable for SONET applications
Narrow linewidth, distributed feedback, multiquan-
tum-well (DFB-MQW)1510 nm or 1550 nm laser
with single-mode fiber pigtail
Operating temperature range: –25
°
C to +70
°
C
(–25
°
C to +85
°
C versions under development)
No TEC required
High output power: typical 2.0 mW peak power
coupled into single-mode fiber
Hermetically sealed active components
Internal back-facet monitor
Built-in thermistor and Bias T
25
Ω
input impedance
Internal isolator
s
s
s
s
s
s
s
s
s
Telcordia Technologies
* TA-983 qualification pro-
gram
Bandwidth > 3 GHz
s
D572-Type 1.5
µ
m Uncooled DFB
FastLight
Laser Module
for 2.5 Gbits/s and High-Bandwidth Applications
Advance Data Sheet
February 2000
Description
(continued)
The device characteristics listed in this document are
met at 2.0 mW output power. Higher- or lower-power
operation is possible. Under conditions of a fixed
photodiode current, the change in optical output is typi-
cally
±
0.5 dB over an operating temperature range of
–25
°
C to +70
°
C.
This device incorporates the new Laser 2000 manufac-
turing process from the Optoelectronic Products unit of
Lucent Technologies Microelectronics Group. Laser
2000 is a low-cost platform that targets high-volume
manufacturing and tighter product distributions on all
optical subassemblies. This platform incorporates an
advanced optical design that is produced on one of the
highly automated production lines at the Opotelectronic
manufacturing facility. The Laser 2000 platform is quali-
fied for the central office and uncontrolled environ-
ments, and can be used for applications requiring high
performance and low cost.
4
3
2
1
Table 1. Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
Connection
Thermistor
Thermistor, package GND
Laser dc bias cathode (–) choke
Photodiode cathode
Photodiode anode
Laser diode anode (+)
Laser RF input cathode (–) 25
Ω
Laser diode anode (+)
5
6
7
8
1-900.b
Figure 1. D572-Type Uncooled DFB Mini 8-Pin Laser Module Schematic, Top View
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 operations sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Maximum Peak Laser Drive Current or
Maximum Fiber Power*
Peak Reverse Laser Voltage:
Laser
Monitor
Monitor Forward Current
Operating Case Temperature Range
Storage Case Temperature Range
Lead Soldering Temperature/Time
Relative Humidity (noncondensing)
* Rating varies with temperature.
Symbol
I
OP
P
MAX
V
RL
V
RM
I
FD
T
C
T
stg
—
RH
Min
—
—
—
—
—
–40
–40
—
—
Max
150
10
2
20
2
85
85
260/10
85
Unit
mA
mW
V
V
mA
°
C
°
C
°
C/s
%
2
Lucent Technologies Inc.
Advance Data Sheet
February 2000
D572-Type 1.5
µ
m Uncooled DFB
FastLight
Laser Module
for 2.5 Gbits/s and High-Bandwidth Applications
Handling Precautions
CAUTION: This device is susceptible to damage as a result of electrostatic discharge (ESD). Take proper
precautions during both handling and testing. Follow
EIA
* Standard
EIA-625.
Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD.
*
EIA
is a registered trademark of Electronic Industries Association.
Electro-Optical Characteristics
Table 2. Electro-Optical Characteristics
(over operating temperature range unless otherwise noted)
Parameter
Operating Temperature
Range
Optical Output Power
Threshold Current
Modulation Current
Symbol
T
P
F
I
TH
I
MOD
Test Conditions
—
CW, peak
T = 25
°
C
T = full range
CW, P
F
= 2.0 mW, T = 25
°
C
CW, I
MON
= constant,
T = full range
CW, P
F
= 2.0 mW, T = 25
°
C
P
F
= 2.0 mW, CW
P
F
= 2.0 mW
CW, P
F
= 2.0 mW
I
MON
= constant, CW
I = (0.9) I
TH
10%—90% pulse
4
, T = 25
°
C
1200 ps/nm—1600 ps/nm;
typical, 1350 ps/nm
CW
At bias coil
—
5
=5V
V
R
V
R5
= 5 V
—
Min
–25
—
5
2
15
7.5
57
1530
—
30
—
—
—
—
18
—
—
100
—
—
Typ
—
2
11
—
25
—
—
1550
—
40
—
—
0.125
—
—
1.0
25
—
10
0.09
Max
70
—
15
60
35
60
1
133
1570
1
—
1.5
100
0.175
2.0
—
1.6
—
1000
200
0.12
Unit
°
C
mW
mA
mA
mA
mA
µ
W/mA
nm
nm
dB
dB
µ
W
ns
dB
dB
V
Ω
µ
A
nA
nm/
°
C
Slope Efficiency
2
Center Wavelength
3
Spectral Width (–20 dB)
Side-mode Suppression
Ratio
Tracking Error
Spontaneous Emission
Rise/Fall Times
Dispersion Penalty
Optical Return Loss
Forward Voltage
Input Impedance
Monitor Current
Monitor Dark Current
Wavelength Tempera-
ture Coefficient
SE
λ
C
∆λ
SMSR
TE
P
TH
t
R
, t
F
D
P
ORL
V
F
R
I
MON
I
D
—
1. BOL value; EOL = 80 mA.
2. The slope efficiency is used to calculate the modulation current for a desired output power. This modulation current plus the threshold current
comprise the total operating current for the device.
3 1510 nm wavelength also available.
4. Corrected for electrical pulse fall time.
5. V
R
= reverse voltage.
Lucent Technologies Inc.
3
D572-Type 1.5
µ
m Uncooled DFB
FastLight
Laser Module
for 2.5 Gbits/s and High-Bandwidth Applications
Advance Data Sheet
February 2000
Qualification Information
The D572-Type Laser Module is scheduled to complete the following qualification tests and meets the intent of
Telcordia Technologies
TR-NWT-000468 for interoffice environments and TA-TSY-000983 for outside plant environ-
ments.
Table 3. D572-Type Laser Module Qualification Test Plan
Qualification Test
Mechanical Shock
Vibration
Solderability
Thermal Shock
Fiber Pull
Accelerated (Biased) Aging
High-temperature Storage
Temperature Cycling
Cyclic Moisture Resistance
Damp Heat
Internal Moisture
Flammability
ESD Threshold
Conditions
500 G
20 g, 20 Hz—2,000 Hz
—
Delta T = 100
°
C
1 kg; 3 times
85
°C,
5,000 hrs.
85
°C,
2,000 hrs.
500 cycles
10 cycles
40
°C,
95% RH,
1344 hrs.
<5,000 ppm water vapor
—
—
Sample Size
11
11
11
11
11
25
11
11
11
11
11
—
6
Reference
MIL-STD-883
Method 2002
MIL-STD-883
Method 2007
MIL-STD-883
Method 2007
MIL-STD-883
Method 2003
Bellcore 983
Bellcore 983
Section 5.18
Bellcore 983
Bellcore 983
Section 5.20
Bellcore 983
Section 5.23
MIL-STD-202
Method 103
MIL-STD-883
Method 1018
TR357
Section 4.4.2.5
Bellcore 983
Section 5.22
4
Lucent Technologies Inc.
Advance Data Sheet
February 2000
D572-Type 1.5
µm
Uncooled DFB
FastLight
Laser Module
for 2.5 Gbits/s and High-Bandwidth Applications
Outline Diagram
Dimensions are in inches and (millimeters).
0.300 (7.62)
0.100 (2.54)
TRADEMARK, CODE, LASER SERIAL NUMBER,
AND/OR DATE CODE IN APPROXIMATE AREA SHOWN
0.169 (4.30)
0.29 (7.37)
0.169 (4.30)
1.06 (27.0)
MIN
0.52 (13.21)
39.37 (1000) MIN
(PIGTAIL LENGTH)
0.045 (1.143)
0.20 (5.00)
0.02 (0.50)
0.17
(4.32)
1.925.e
Lucent Technologies Inc.
5
京公网安备 11010802033920号
EEWORLD
