D572 Datasheet, PDF (3/8 Pages) Agere Systems – D572-Type 1.5 m m Uncooled DFB FastLight ™ Laser Module for 2.5 Gbits/s and High Bandwidth Applications

Advance Data Sheet
February 2000
D572-Type 1.5 µm 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
PF
ITH
IMOD
Slope Efficiency²
Center Wavelength³
Spectral Width (–20 dB)
Side-mode Suppression
Ratio
Tracking Error
SE
λC
∆λ
SMSR
TE
Test Conditions
—
CW, peak
T = 25 °C
T = full range
CW, PF = 2.0 mW, T = 25 °C
CW, IMON = constant,
T = full range
CW, PF = 2.0 mW, T = 25 °C
PF = 2.0 mW, CW
PF = 2.0 mW
CW, PF = 2.0 mW
IMON = constant, CW
Min Typ Max
–25
—
70
—
2
—
5
11
15
2
—
60
15
25
35
7.5
—
60¹
57
1530
—
30
—
1550
—
40
133
1570
1
—
—
—
1.5
Unit
°C
mW
mA
mA
mA
mA
µW/mA
nm
nm
dB
dB
Spontaneous Emission
Rise/Fall Times
Dispersion Penalty
Optical Return Loss
Forward Voltage
Input Impedance
Monitor Current
Monitor Dark Current
Wavelength Tempera-
ture Coefficient
PTH
tR, tF
DP
ORL
VF
R
IMON
ID
—
I = (0.9) ITH
10%—90% pulse⁴, T = 25 °C
1200 ps/nm—1600 ps/nm;
typical, 1350 ps/nm
CW
At bias coil
—
VR⁵ = 5 V
VR⁵= 5 V
—
—
—
100
µW
— 0.125 0.175 ns
—
—
2.0
dB
18
—
—
dB
—
1.0
1.6
V
—
25
—
Ω
100
—
1000
µA
—
10
200
nA
—
0.09 0.12 nm/°C
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. VR = reverse voltage.
Lucent Technologies Inc.
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