HAMAMATSU L8347-11, L8347, L8347-31, L8347-22, L8347-21 Datasheet
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L A S E R D I O D E
Laser diode
L8347/L7892 series
Pigtail type, 1.3 µm, 1.25, 2.5 Gbps
L8347 and L7892 series are high-speed infrared emitter devices specifically developed for 1.3 m band optical fiber communications. These devices incorporate a high-speed Fabry-Perot laser diode integrated in a pig-tail module. Packages are available with various connectors and mounting styles.
Features
lHigh-speed Fabry-Perot laser diode L8347 series: 1.25 Gbps
L7892 series: 2.5 Gbps
lCompatible with single-mode optical fiber
■Absolute maximum ratings (Ta=25 °C)
Applications
lOptical fiber communications
lFiber channel
lGigabit ethernet
lHDTV
lSDH
Parameter |
Symbol |
L8347 series |
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L7892 series |
Unit |
Forward current |
I. |
Ith + 14 (DC) |
|
Ith + 16 (DC) |
mA |
Ith + 28 (pulse) * |
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Ith + 32 (pulse) * |
mA |
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Reverse voltage (laserdiode) |
V4 |
2 |
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V |
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Reverse voltage (photodiode) |
V4m |
20 |
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V |
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Operating temperature |
Topr |
-20 to +70 |
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°C |
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Storage temperature |
Tstg |
-40 to +70 |
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°C |
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* Duty ratio: 50 % |
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■ Electrical and optical characteristics (Typ. Ta=25 °C, I.=Ith +10 mA)
Parameter |
Symbol |
L8347 series |
L7892 series |
Unit |
Peak wavelength |
lp |
1.31 |
1.31 |
µm |
Forward voltage |
V. |
1.1 |
1.1 |
V |
Threshold current |
Ith |
6 |
9 |
mA |
Fiber end output |
P. |
0.1 |
0.3 |
mW |
Rise time |
tr |
250 |
200 |
ps |
Data rate |
B |
1.25 |
2.5 |
Gbps |
Monitor current (photodiode) |
Im |
0.4 |
0.5 |
mA |
■ Package lineup
Configuration |
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L8347/L7892 |
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-11 |
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-12 |
-21 |
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-22 |
-31 |
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-32 |
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Module |
Mounting style |
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Coaxial |
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Board |
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Panel |
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Dimensional outline |
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Fiber |
Type |
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SM (9.5/125) f0.9 |
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Length |
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1 m +20 cm/-0 cm |
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Connector |
Type |
SC |
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FC |
SC |
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FC |
SC |
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FC |
Dimensional outline |
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