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E2V0034-37-X1
LASER DIODES OL4492L, OL5492L/A, OL5492L/B
¡ electronic components
OL4492L, OL5492L/A, OL5492L/B
1.48, 1.51, 1.52 mm Coaxial DFB Laser Module
GENERAL DESCRIPTION
The OL4492L, OL5492L/A, and OL5492L/B are MQW-DFB laser diode coaxial modules with
optical isolator and single-mode fiber pigtails. These modules are optimal light sources for
WDM supervisory channel in SDH system with optical in-line amplifier.
FEATURES
• Single-mode fiber output: Pf=2 mW
• Side mode suppression ratio: 30dB
• Includes monitor PD for power control
• Built-in optical isolator
• Wide operation temperature range
• Multi-quantum-well (MQW) structure
APPLICATIONS
• WDM supervisory channel in SDH system with optical in-line amplifier
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LASER DIODES OL4492L, OL5492L/A, OL5492L/B
PACKAGE DIMENSIONS (Unit: mm)
• OL4492L, OL5492L/A, OL5492L/B
f6.8
26.613
2–f2.2
4
7
12.7
17
e
6.41
w
4–f0.45
f4
LD
r
q
2
CASE
r
qw
e
PD
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LASER DIODES OL4492L, OL5492L/A, OL5492L/B
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Ratings Unit
Fiber Output
LD Forward Current
PD Reverse Voltage
PD Forward Current
Operating Temperature
Storage Temperature
Pf
(LD)
I
F
(PD) 20 V
V
R
(PD) 10 mA
I
F
T
opr
T
stg
Test Conditions
Ta=25°C
—
—
OPTICAL AND ELECTRICAL CHARACTERISTICS
Parameter Symbol Min. Unit
Threshold Current
Fiber Output Power
Operating current
Side Mode Suppresion Ratio
Rise Time
Fall Time
Forward Voltage
PD Dark Current
Monitor Current
SMSR 30 dB——Pf=2 mW
I
DARK
Test Conditions
Ith
—
Pf 2 mW——CW
I
op
t
r
t
f
V
F
Im 50 mA——
Pf=2 mW
Pf=2 mW, 10% to 90%
VR (PD)=5 V, Pf=2 mW
3mW
150 mA
0 to +65 °C
–40 to +85 °C
(Ta=25°C)
Typ.
—mA
—mA
—
—
Max.
40
120
—ns— 0.5Ibias=Ith
—ns— 0.5
—V1.1 1.5Pf=2 mW
—nA0.5 20VR(PD)=5 V
Peak Wavelength
Model Symbol Min. Unit
OL4492L
OL5492L/A
OL5492L/B
lp
Test Conditions
Pf=2mW
(Ta=0 to 65°C)
Max.
1470
1500 nm
1510
1490
1520
1530
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LASER DIODES OL4492L, OL5492L/A, OL5492L/B
TYPICAL CHARACTERISTICS
• OL4492L
Fiber Output Power vs. Forward Current (Ta=25°C)
3.5
(Pf–Im)
2.8
2.1
1.4
0.7
Fiber Output Power Pf (mW)
(Pf–IF)
• OL4492L
–15
–35
0
0 20406080100
Forward Current IF (mA)
0 0.4 0.8 1.2 1.6 2
Monitor Current I
(mA)
m
Oscillation Spectrum (Ta=25°C)
5
Relative Intensity (dB)
–55
–75
1469.1 1479.1 1489.1
Wavelength (nm)
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LASER DIODES OL4492L, OL5492L/A, OL5492L/B
TYPICAL CHARACTERISTICS (Continued)
• OL5492L/A
Fiber Output Power vs. Forward Current (Ta=25°C)
3
2.4
1.8
1.2
0.6
Fiber Output Power Pf (mW)
0
0 20406080100
0 0.4 0.8 1.2 1.6 2
(Pf–IF) (Pf–Im)
Forward Current IF (mA)
Monitor Current I
(mA)
m
• OL5492L/A
Oscillation Spectrum (Ta=25°C)
5
–15
–35
Relative Intensity (dB)
–55
–75
1499.9 1509.9 1519.9
Wavelength (nm)
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LASER DIODES OL4492L, OL5492L/A, OL5492L/B
TYPICAL CHARACTERISTICS (Continued)
• OL5492L/B
Fiber Output Power vs. Forward Current (Ta=25°C)
3
(Pf–Im)
2.4
1.8
1.2
0.6
Fiber Output Power Pf (mW)
(Pf–IF)
• OL5492L/B
–15
–35
0
0 20406080100
Forward Current IF (mA)
0 0.4 0.8 1.2 1.6 2
Monitor Current I
(mA)
m
Oscillation Spectrum (Ta=25°C)
5
Relative Intensity (dB)
–55
–75
1513.9 1523.9 1533.9
Wavelength (nm)
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