LASER DIODE
Laser diode
L8231/L7551 series
Receptacle type, 1.3 碌m, 1.25, 2.5 Gbps
L8231 and L7551 series are high-speed infrared emitters specifically developed for
1.3
碌m
band
optical fiber communications. These devices
incorporate a high-speed Fabry-Perot laser diode integrated in a receptacle module. Packages are available with various connectors and
mounting styles.
Features
L8231 series: 1.25 Gbps
L7551 series: 2.5 Gbps
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Compatible with single/multi mode optical fibers
Applications
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High-speed Fabry-Perot laser diode
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Optical fiber communications
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Fiber channel
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Gigabit ethernet
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HDTV
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SDH
s
Absolute maximum ratings (Ta=25
擄C)
Parameter
Forward current
Reverse voltage (laserdiode)
Reverse voltage (photodiode)
Operating temperature
Storage temperature
*1: Duty ratio 50 %
Symbol
I
F
V
R
V
R
m
Topr
Tstg
L8231 series
Ith + 14 (DC)
Ith + 28 (pulse) *
1
2
20
-20 to +70
-40 to +70
L7551 series
Ith + 16 (DC)
Ith + 32 (pulse) *
1
Unit
mA
mA
V
V
擄C
擄C
s
Electrical and optical characteristics (Typ. Ta=25
擄C,
I
F
=Ith +10 mA)
Parameter
Symbol
L8231 series
L7551 series
Peak wavelength
1.31
1.31
位p
Forward voltage
V
F
1.1
1.1
Threshold current
Ith
6
9
2
Fiber end output *
P
F
0.2
0.2
Rise time
tr
250
200
Data rate
B
1.25
2.5
Monitor current (photodiode)
Im
0.4
0.5
*2: M e a s ur e d using a single- mo d e o ptical fiber ( m o d e field di am et er 9.5 碌m) w i t h a m a ster plu g.
Unit
碌m
V
mA
mW
ps
Gbps
mA
s
Package lineup
Parameter
Mounting style
Connector
Dimensional outline
-21
SC
鉃€
-22
Board
FC
鉃?/div>
L8231/L7551
-23
MU
鉃?/div>
-32
Panel
FC
鉃?/div>
-44
Board & panel
LC
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