Rev.2 [December 2008]

Optoelectronics Components Data Sheet■ DE-0782
1550nm, 20mW FP Laser Diode Coaxial Module for OTDR

Description
DE-0782 is 1550nm pulse drive laser diode (LD) modules of coaxial pigtail
type. This module consists of a multi quantum well Fabry Perot (MQW FP)
LD, a monitor photo diode (PD), a single-mode fiber and a coaxial package.
This module is suitable for OTDR applications.

Features♦

Fiber output power : 20mW Min. (Pulse drive)♦MQW FP structure♦

Includes monitor PD♦

Hermetically sealed LD device♦YAG laser spot welding for high reliability♦Coaxial packageApplications•

OTDR systems•

Optical measuring instruments

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DE-0782
Rev.2 [December 2008]

Absolute Maximum Ratings(Tc=25°C, unless otherwise specified)Parameter

SymbolRatings

UnitConditions

Peak fiber output power
LD reverse voltage

Pf
VRL

30
2.5mW
V

(*1)

LD forward current

If250mA(*1)

Monitor PD Reverse voltage

VRP20V---

Monitor PD Forward current

IFP2mA---

Storage temperature

Tstg-40 ~ +85°C---

Operating temperature

Tc-20 ~ +70°C---

Soldering temperature

Ts260°C(*1)

10sec,>2mm

Note : (*1) LD driving conditions ; 10µsec pulse width and 1% duty

Electrical and Optical Characteristics(Tc=25°C, unless otherwise specified )Parameter

SymbolFiber output power

Pf

Threshold current

Conditions

Min.

Typ.

Max.

Unit

Iop=200mA (peak), (*2)

20---

---mW

Ith(*2)

---

---

20mA

Operation current

Iop

Pf=20mW, (*2)

---

170

200mA

Operation voltage

Vop

Pf=20mW, (*2)

---

---

2.5

VCenter wavelength

λc

Pf=20mW, RMS, (*2)

1535

1550

1565

nm

Spectrum width∆λPf=20mW, RMS2σ, -20dB, (*2)------

12nm

Rise & Fall time

tr, tf10-90%, Ib=Ith, Pf=20mW, (*2)------1nsMonitor PD
output current

Im

VRP=10V, Pf=2mW, CW

100

---

900

µA

Tracking Error

TECW, Im(@Tc=25°C) =constant

-1

---

1dB

Note : (*2) LD driving conditions ; 10µsec pulse width and 1% duty

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DE-0782
Rev.2 [December 2008]

Outline Drawings
All dimension in mm
Tolerance: +/-0.2,unless otherwise noted.

（1000）±1

10 Min.

Ø6.1

Ø0.9

Ø4.5

#2

#4
Case

30
9.3

4-Ø0.45

Ø2(P.C.D)#1#3

No flange type

SC/PC connector（1000）
30±1

10 Min.

Ø0.9

Ø6.1

178
#4

12.7

#2

#1

Ø4.5

9.3

Ø2(P.C.D)

4-Ø0.45#3

1482-Ø2.4
4

FC/PC connector

Horizontal flange type（1000）
30

10 Min.
Ø2(P.C.D)

Ø7

Ø0.9

#3

Ø4.5

#4
Case

Ø6.1

#2

1216

#1

9.3
4-Ø0.457±12-Ø2.4

0.5
0.3±0.2

MU/PC connector

Pin configuration#2PD#1LDPin No.
123#3#4 (Case)

4Function
LD cathodePD anode
LD anode
PD cathode
Case

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DE-0782
Rev.2 [December 2008]

Optical Fiber Characteristics
Parameter

Min.

Fiber type

Typ.

Max.

Single mode

Unit
---

Mode field diameter

8910µmClad diameter

123

125

127µm

Concentricity error

---

---

1µm

Cladding non-circularity

---

---

2%

Mode field non-circularity

---

---

6%

Cut off wavelength

1270

---

---

nm

Jacket diameter

0.80.91mm

Bending Radius

20---

---

mm

Tensile strength fiber case5------NLength---(1000)---mm

FC type / SPCConnector

SC type / SPC
MU type / SPC

Ordering information

DE-0782-□□CodeConnector type

CodeFlange type

SSC/SPCN

No flange

FFC/SPC

H

Horizontal type

M

MU/SPC

V

Vertical type
Flange typeConnector type

OPTOHUB Co., Ltd.
305 Live Tower Musashi Urawa
7-6-8 Bessho, Minami-ku, Saitama-shi
Saitama, 336-0021 JAPANURL : http://www.optohub.com
E-mail : info@optohub.com
TEL : +81-48-844-8899
FAX : +81-48-844-8902

All specifications described herein are subject to change without notice.
Copyright 2008 OPTOHUB Co., Ltd.

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