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
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High-speed Fabry-Perot laser diode
L8347 series: 1.25 Gbps
L7892 series: 2.5 Gbps
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Compatible with single-mode optical fiber
Applications
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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
LASER DIODE
Laser diode
Pigtail type, 1.3 µm, 1.25, 2.5 Gbps
L8347/L7892 series
■ Absolute maximum ratings (Ta=25 °C)
Parameter Symbol L8347 series L7892 series Unit
Ith + 14 (DC) Ith + 16 (DC) mA
Forward current I.Ith + 28 (pulse) * Ith + 32 (pulse) * mA
Reverse voltage (laserdiode) V42 V
Reverse voltage (photodiode) V4m20 V
Operating temperature Topr -20 to +70 °C
Storage temperature Tstg -40 to +70 °C
* Duty ratio: 50 %
■ Electrical and optical characteristics (Typ. Ta=25 °C, I.=Ith +10 mA)
Parameter Symbol L8347 series L7892 series Unit
Peak wavelength lp1.31 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 B1.25 2.5 Gbps
Monitor current (photodiode) Im 0.4 0.5 mA
■ Package lineup
L8347/L7892
Configuration -11 -12 -21 -22 -31 -32
Mounting style Coaxial Board Panel
Module Dimensional outline ➀➁➂
Type SM (9.5/125) f0.9
Fiber Length 1 m +20 cm/-0 cm
Type SC FC SC FC SC FC
Connector Dimensional outline ➃➄➃➄➃➄
1
■ Pin connection
Pin No. L8347 series L7892 series
➀Anode (PD) Cathode (PD)
➁Anode (LD) Cathode (LD)
➂Cathode (LD) Anode (LD)
➃Cathode (PD) Anode (PD)
Laser diode
L8347/L7892 series
c
6.1
INDEX MARK
8.0
0.45 ± 0.1
LEAD
a
b
8.1
0.5 ± 0.3
2.5
12
16
7.0
(2 ×) 2.5
2.0)(
L8347-31/-32 L7892-31/-32
(16)
9.4 ± 0.3
(24.4)
c
b
a
(10)
8.1 ± 0.3
(23.1)
■ Dimensional outline (unit: mm, tolerance unless otherwise noted: ±0.2)
KLEDA0049EA
Mounting type
➀ Coaxial ➁ Board
KLEDA0050EA
KLEDA0051EA
➂ Panel
KIRDA0102EA
Connector
➃ SC ➄ FC
KIRDA0103EA
JIS C5973
SC/SPC CONNECTOR
JIS C5970
FC/SPC CONNECTOR
c
INDEX MARK
0.45 ± 0.1
LEAD
a
b
2.0)(
6.1
7.0
(16)
9.1
(24.1)
c
b
a
L8347-11/-12
(10)
7.8
(22.8)
L7892-11/-12
c
6.1
0.45 ± 0.1
LEAD
a
b
2.0
4.0 ± 0.3
1.0
0.75 ± 0.5
12.7
17.0 ± 0.3
7.0
(2 ×) 2.2
7.4
2.0)(
L8347-21/-22 L7892-21/-22
(16)
9.1
(24.1)
c
b
a
(10)
7.8
(22.8)
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
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.
Cat. No. KLED1019E02
Jan. 2001 DN
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