LASER DIODE
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
µm
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
L8347 series: 1.25 Gbps
L7892 series: 2.5 Gbps
l
Compatible with single-mode optical fiber
Applications
l
High-speed Fabry-Perot laser diode
l
Optical fiber communications
l
Fiber channel
l
Gigabit ethernet
l
HDTV
l
SDH
s
Absolute maximum ratings
(Ta=25
°C)
Parameter
Symbol
I
.
V
4
V
4
m
Topr
Tstg
Forward current
Reverse voltage (laserdiode)
Reverse voltage (photodiode)
Operating temperature
Storage temperature
* Duty ratio: 50 %
L8347 series
Ith + 14 (DC)
Ith + 28 (pulse) *
2
20
-20 to +70
-40 to +70
L7892 series
Ith + 16 (DC)
Ith + 32 (pulse) *
Unit
mA
mA
V
V
°C
°C
s
Electrical and optical characteristics (Typ. Ta=25
°C,
I
.
=Ith +10 mA)
Parameter
Peak wavelength
Forward voltage
Threshold current
Fiber end output
Rise time
Data rate
Monitor current (photodiode)
Symbol
lp
V
.
Ith
P
.
tr
B
Im
L8347 series
1.31
1.1
6
0.1
250
1.25
0.4
L7892 series
1.31
1.1
9
0.3
200
2.5
0.5
Unit
µm
V
mA
mW
ps
Gbps
mA
s
Package lineup
Configuration
Mounting style
Dimensional outline
Type
Fiber
Length
Type
Connector
Dimensional outline
Module
-11
Coaxial
➀
-12
SC
➃
FC
➄
L8347/L7892
-21
-22
Board
➁
SM (9.5/125)
f0.9
1 m +20 cm/-0 cm
SC
FC
➃
➄
-31
Panel
➂
-32
SC
➃
FC
➄
1
Laser diode
s
Dimensional outline (unit: mm, tolerance unless otherwise noted: ±0.2)
Mounting type
➀
Coaxial
➁
Board
L8347/L7892 series
a
b
0.75 ± 0.5
a
c
b
1.0
c
17.0 ± 0.3
6.1
7.0
0.45 ± 0.1
LEAD
( 2.0)
INDEX MARK
7.4
0.45 ± 0.1
LEAD
( 2.0)
12.7
6.1
7.0
(2 ×)
2.0
4.0 ± 0.3
2.2
L8347-11/-12
a
b
c
(24.1)
9.1
(16)
L7892-11/-12
(22.8)
7.8
(10)
KLEDA0049EA
L8347-21/-22
a
b
c
a
b
2.5
0.5 ± 0.3
(24.1)
9.1
(16)
L7892-21/-22
(22.8)
7.8
(10)
KLEDA0050EA
➂
Panel
6.1
16
( 2.0)
8.1
c
12
(2 ×)
2.5
0.45 ± 0.1
LEAD
INDEX MARK
8.0
7.0
s
Pin connection
Pin No.
➀
➁
➂
➃
KLEDA0051EA
L8347-31/-32
a
b
c
(24.4)
9.4 ± 0.3
(16)
L7892-31/-32
(23.1)
8.1 ± 0.3
(10)
L8347 series
Anode (PD)
Anode (LD)
Cathode (LD)
Cathode (PD)
L7892 series
Cathode (PD)
Cathode (LD)
Anode (LD)
Anode (PD)
Connector
➃
SC
➄
FC
JIS C5973
SC/SPC CONNECTOR
KIRDA0102EA
JIS C5970
FC/SPC CONNECTOR
KIRDA0103EA
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
2
Cat. No. KLED1019E02
Jan. 2001 DN
