HAMAMATSU L8347-11, L8347, L8347-31, L8347-22, L8347-21 Datasheet

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

l

High-speed Fabry-Perot laser diode
L8347 series: 1.25 Gbps
L7892 series: 2.5 Gbps

l

Compatible with single-mode optical fiber

Absolute maximum ratings

■

Parameter Symbol L8347 series L7892 series Unit

Forward current I

Reverse voltage (laserdiode) 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

■

Parameter Symbol L8347 series L7892 series Unit

Peak wavelength
Forward voltage V
Threshold current Ith 6 9 mA
Fiber end output P
Rise time tr 250 200 ps
Data rate B 1.25 2.5 Gbps
Monitor current (photodiode) Im 0.4 0.5 mA

(Ta=25 °C)

.

4

lp

.

.

Ith + 14 (DC) Ith + 16 (DC) mA

Ith + 28 (pulse) * Ith + 32 (pulse) * mA

Applications

l

Optical fiber communications

l

Fiber channel

l

Gigabit ethernet

l

HDTV

l

SDH

2 V

=Ith +10 mA)

.

1.31 1.31 µm

1.1 1.1 V

0.1 0.3 mW

Package lineup

■

Configuration

Module

Fiber

Connector

Dimensional outline

Dimensional outline

L8347/L7892

-11 -12 -21 -22 -31 -32

Mounting style Coaxial Board Panel

➀➁➂

Type

Length 1 m +20 cm/-0 cm

Type SC FC SC FC SC FC

➃➄➃➄➃➄

SM (9.5/125) f0.9

1

Laser diode

■ Dimensional outline (unit: mm, tolerance unless otherwise noted: ±0.2)

Mounting type

Coaxial ➁ Board

➀

1.0

6.1

2.0)(

7.4

L8347-21/-22 L7892-21/-22

(24.1)

a

9.1

b

(16)

c

2.0)(

a

b

c

➂ Panel

6.1

L8347-11/-12

(24.1)

9.1

(16)

8.1

2.0)(

7.0

L7892-11/-12

c

0.45 ± 0.1

LEAD

(22.8)

7.8

(10)

a

b

INDEX MARK

KLEDA0049EA

a

b

2.5

0.5 ± 0.3

c

L8347/L7892 series

b

0.75 ± 0.5

c

7.0

12.7

17.0 ± 0.3

(22.8)

7.8

(10)

0.45 ± 0.1

LEAD

(2 ×) 2.2

2.0

4.0 ± 0.3

a

KLEDA0050EA

16

6.1

(2 ×) 2.5

12

INDEX MARK

0.45 ± 0.1

LEAD

8.0

7.0

Pin connection

■

Pin No. L8347 series L7892 series

L8347-31/-32 L7892-31/-32

(24.4)

a

9.4 ± 0.3

b

(16)

c

8.1 ± 0.3

(23.1)

(10)

➀
➁
➂
➃

KLEDA0051EA

Anode (PD) Cathode (PD)

Anode (LD) Cathode (LD)
Cathode (LD) Anode (LD)
Cathode (PD) Anode (PD)

Connector

➃ SC ➄ FC

JIS C5973
SC/SPC CONNECTOR

KIRDA0102EA

Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.

HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], 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: [phone], Fax: [phone]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: [phone], Fax: [phone]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]

Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K.

JIS C5970
FC/SPC CONNECTOR

2

KIRDA0103EA

Cat. No. KLED1019E02
Jan. 2001 DN