D374-02N Просмотр технического описания (PDF) - Agere -> LSI Corporation
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D374-02N Datasheet PDF : 8 Pages
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Data Sheet
December 2000
D374-Type Digital Uncooled 2.5 Gbits/s Laser Module
Handling Precautions
Caution: This device is susceptible to damage as a result of electrostatic discharge (ESD). Take proper pre-
cautions during both handling and testing. Follow guidelines such as JEDEC Publication No. 108-
A (Dec. 1988).
Although protection circuitry is designed into the device, take proper precautions to avoid exposure to ESD.
Electrical/Optical Characteristics
Table 2. Electrical/Optical Characteristics (over operating temperature range unless otherwise noted)
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
Operating Temperature
T
Range
Optical Output Power*
PF
Threshold Current
ITH
Modulation Current
IMOD
Slope Efficiency†
Center Wavelength
RMS Spectral Width
Tracking Error
Spontaneous Emission
Rise/Fall Times
Forward Voltage
Input Impedance
Monitor Current
Monitor Dark Current
Wavelength Temperature
Coefficient
SE
λC
∆λ
TE
PTH
tR, tF
VF
R
IMON
ID
—
—
CW, nominal
T = 25 °C
T = full range
CW, PF = 1.0 mW, T = 25 °C
CW, IMON = constant,
T = full range
CW, PF = 1.0 mW, T = 25 °C
PF = 1.0 mW, CW
PF = 1.0 mW, 155 Mbits/s
IMON = constant, CW
I = (0.9) ITH
10%—90% pulse
T = 25 °C
At bias coil
—
VR‡ = 5 V
VR‡ = 5 V
—
–40
—
85
°C
—
1
—
mW
4.5
9
15
mA
1
—
45
mA
10
15
20
mA
8
—
35
mA
50
1270
—
—
—
—
75
—
2
0.5
—
0.125
100
1350
3
±1
50
0.150
µW/mA
nm
nm
dB
µW
ns
—
1.1
1.6
V
—
25
—
Ω
150
—
750
µA
—
10
200
nA
—
0.4
0.5 nm/°C
* Higher and lower powers available. See Table 4 for more information.
† 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.
‡ VR = reverse voltage.
Agere Systems Inc.
3
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