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LASER DIODE
Laser diode
L8347/L7892 series
Pigtail type, 1.3 m, 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
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. V4 V4m 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 m V mA mW ps Gbps mA
s Package lineup
Configuration Mounting style Module Dimensional outline Type Fiber Length Type Connector Dimensional outline -11 Coaxial -12
SC
FC
L8347/L7892 -21 -22 Board SM (9.5/125) f0.9 1 m +20 cm/-0 cm SC FC
-31
Panel
-32
SC
FC
1
Laser diode
s Dimensional outline (unit: mm, tolerance unless otherwise noted: 0.2) Mounting type Coaxial 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 x) 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
Panel
6.1
16
( 2.0)
8.1
c
12
(2 x)
2.5
0.45 0.1 LEAD
INDEX MARK
8.0
7.0
s Pin connection
Pin No.
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 SC 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. (c)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: Smidesvagen 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

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