Datasheet OL4121N-120, OL4121N-140 Datasheet (OKI)

D

ATA SHEET

O K I F I B E R - O P T I C P R O D U C T S

OL4121N-120 and OL4121N-140

High-Power Laser Diode Butterfly Modules

(1480 nm, 120 mW/140 mW)

February 2000

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CONTENTS

OL4121N-120 and OL4121N-140 High-Power Laser Diode Butterfly Modules

...... 1

Oki Semiconductor

OL4121N-120 and OL4121N-140

High-Power Laser-Diode Butterfly Modules

INTRODUCTION

Oki Semiconductor’s OL4121N-120/OL4121N-140 family of 1480-nm high-power laser diodes are avail­able in a 14-pin “butterfly” package which is designed for high-performance fiber-optic applications. The
OL4121N-120 and OL4121N-140 diodes have a built-in thermo-electric cooler, thermistor, and isolator,
and have a single-mode fiber pigtail.

The OL4121N is available in two optional power levels: 120 mW or 140 mW. These laser diodes can be
used as a pumping source for an Er- (erbium) doped fiber-optic amplifier. The high power output of the
laser diodes in the OL4121N family supports the high-performance demands of Erbium-Doped Fiber­optic Amplifiers in Dense Wavelength Division Multiplex (DWDM-EDFA) systems and long-haul terres­trial networks.

FEATURES

• High power output: Pf=120 mW (OL4121N-120)

• 14-pin “butterfly” package

• Single-mode fiber

• Built-in isolator

• Includes photodiode for power monitoring

• Built-in thermo-electric cooler (TEC)

Pf=140 mW (OL4121N-140)

APPLICATION

• WDM/DWDM systems

• Erbium-doped fiber amplifier

• Regeneration of data

• Fiber-optic long-haul terrestrial networks

1Oki Semiconductor

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OL4121N-120 and OL4121N-140 ■ ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings (ambient temperature Ta = 25°C unless otherwise noted)

Parameter

Fiber Output Power

OL4121N-120

OL4121N-140

Laser Diode Forward Current

OL4121N-120

OL4121N-140

Laser Diode Reverse Voltage V
Photo Diode Reverse Voltage V
Operating Temperature Range Topr -20 to +65 °C
Storage Temperature Range Tstg -40 to +70 °C

Exceeding these maximum ratings could cause immediate damage or lead to permanent deterioration of the device.

Optical and Electrical Characteristics (Ta = 25°C)

Parameter

Threshold Current I
Laser Diode Operating Current

OL4121N-120

OL4121N-140

Laser Diode Operating Voltage Vop
Center Wavelength
RMS Spectral Width
Tracking Error TER IM = const., 0/ 25/ 65°C --- --- +/-1.0 dB
PD Dark Current I
Monitor Current Im Pf = 120 / 140 mW, V
Thermoelectric Cooler Capacity
Thermoelectric Cooler Current I
Thermoelectric Cooler Voltage V
Thermistor Resistance Rth --- 9 --- 11 K

Symbol Test Conditions Min. Typ. Max. Units

TH

Iop

(LD)

Pf = 120 mW --- --- 600 mA
Pf = 140 mW 700 mA

(LD)

λ

c Pf = 120 / 140 mW 1460 --- 1490 nm

σ

DARK

∆

T Pf = 120 / 140 mW 40 --- --- °C

TEC

TEC

Pf = 120 / 140 mW --- --- 2.5 V

Pf = 120 / 140 mW (RMS) --- --- 10 nm

V

R(PD)

∆

T = 40°C, Pf = 120 / 140 mW --- --- 1.5 A

∆

T = 40°C, Pf = 120 / 140 mW --- --- 4.0 V

Symbol Ratings Units

Pf 130 mW

160 mW

I

F(LD)

750 mA
800 mA

R(LD)
R(PD)

2V

15 V

--- --- --- 60 mA

= 5 V --- --- 100 nA

= 5 V 100 --- ---

R(PD)

µ

A

Ω

Fiber Pigtail Specifications

Parameter Specifications Units

Type SM --­Mode Field Diameter 10 +/-1
Cladding Diameter 125 +/-2
Jacket Diameter 900
Length 1.0 (Minimum) m
Connector FC ---

2 Oki Semiconductor

µ

m

µ

m

µ

m

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– ■ OL4121N-120 and OL4121N-140

PACKAGE DIMENSIONS

(Units: mm)

d = 2.6

12.7

36 (min.)

30
26

20.83

8.9

8.0

5.35

5.4

14.7

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1000 (min.)

1100 (min.)

5.6

ø0.9mm Loose Tube

0.48 ± 0.2

0.35 ± 0.2

17.78

16

26 ± 1

2.54

280 ± 10 50 ± 20

5.1

Tolerance = ±0.5 mm (unless noted otherwise)

TERMINAL CONNECTION (BOTTOM VIEW)

#14#13#11#10

(-)

T.E.C

(+)

#1#2#4#5 #3

CASE

#7 #6

#9#8

#12

LD

TH

PD

Pin Configuration

Pin No.

01 Thermo Electric Cooler (+) 08 NC

02 Thermistor 09 NC

03 PD Anode 10 LD Anode

04 PD Cathode 11 LD Cathode

05 LD Anode 12 NC

06 NC 13 Thermistor and Case Ground

07 NC 14 Thermo Electric Cooler Cathode (-)

Description Pin No. Description

0.25 ± 0.1

0.2 ± 0.1

1.52

FIBER

TH:

Thermistor

T.E.C: Thermo-Electric Cooler

8° Angled ø2.5mm

Ferrule

3Oki Semiconductor

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OL4121N-120 and OL4121N-140 ■ ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Notes:

4 Oki Semiconductor

The information contained herein can change without notice owing to product and/or technical improvements.
Please make sure before using the product that the information you are referring to is up-to-date.
The outline of action and examples of application circuits described herein have been chosen as an explanation of the standard action

and performance of the product. When you actually plan to use the product, please ensure that the outside conditions are reflected in
the actual circuit and assembly designs.

Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect,
improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited
to, exposure to parameters outside the specified maximum ratings or operation outside the specified operating range.

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third party's right which may result from the use thereof.

When designing your product, please use our product below the specified maximum ratings and within the specified operating ranges,
including but not limited to operating voltage, power dissipation, and operating temperature.

The products listed in this document are intended for use in general electronics equipment for commercial applications (e.g.,office
automation, communication equipment, measurement equipment, consumer electronics, etc.).These products are not authorized for
use in any system or application that requires special or enhanced quality and reliability characteristics nor in any system or application
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Copyright 2000 Oki Semiconductor
Oki Semiconductor reserves the right to make changes in specifications at anytime and without notice. This information furnished by

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Semiconductor for its use; nor for any infringements of patents or other rights of third parties resulting from its use. No license is
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