JOG-01128 Rev.5
OKI Electronics Components Rev. 5 [12. 2005]
OL2450L-2-Wnnn, OL2451L-2-Wnnn
OL2453L-2-Wnnn, OL3450L-2-Wnnn
OL3451L-2-Wnnn, OL3453L-2-Wnnn
OL4450L-2-Wnnn, OL4451L-2-Wnnn
OL4453L-2-Wnnn Series(W127-141)
2mWCoaxial DFB Laser Diode Modules
Drawing No: JOG-01128 Rev.5
- 1 -
Oki Electric Ind ustry Co., Ltd.
1.DESCRIPTION
The OL2450L-2-Wnnn, OL2451L-2-Wnnn, OL2453L-2-Wnnn, OL3450L-2-Wnnn,
OL3451L-2-Wnnn, OL3453L-2-Wnnn, OL4450L-2-Wnnn, OL4451L-2-Wnnn,
OL4453L-2-Wnnn series consist of an MQW-DFB laser diode, a mo nito r PD, a sing le-stage
optical iso lator, a single-mode fiber and a coaxial package.
These modules are coaxial DFB Laser Diode Modules for CWDM 2.5Gbit/s transmission
with high power at high temperature.
2. FEATURES
Fiber output power: Pf=2.0mW
Wide operating tem perature range: Tc=0 to +70°C
Side mode suppression: 32dB
Multi-quantum-well (MQW) DFB structure
Internal monitor PD for power control
Built-in single-stage optical isolator
Coaxial Package
No TEC required
3. APPLICATION
CWDM
JOG-01128 Rev.5
OKI Electronics Components
Drawin g No: JOG-01128 Rev.5
- 2 -
Oki Electric Ind ustry Co., Ltd.
4.OPTICAL AND ELECTRICAL CHARACTERISTICS
(Tc = 0 to +70°C, unless otherwise spec ified)
Parameter Symbol
Test Conditions Min. Typ. Max. Unit
Fiber Output Power Pf CW 2.0 mW
Fiber Output Power
(Average) PAVG Modulated 1.0 mW
Tc=+25°C , C W,BOL 7 15
Tc=+70°C,CW,BOL 25 40
Threshold Current Ith Tc=+70°C,C W,EOL 1.5*Ith-
BOL
mA
Opera t ion Current Iop Pf=2.0mW,CW 70 110 mA
Slope efficiency Pf=2.0mW,
CW,Tc=+25°C 0.05 0.064
W/A
Modulation Current ImodPf=2.0mW,CW,Tc=+25°C 30 40 mA
OL245xL-2-W127
1267 1270 1273
OL245xL-2-W129
1287 1290 1293
OL345xL-2-W131
1307 1310 1313
OL345xL-2-W133
1327 1330 1333
OL345xL-2-W135
1347 1350 1353
OL345xL-2-W137
1367 1370 1373
OL345xL-2-W139
1387 1390 1393
Peak Wavelength p
Pf=
2.0mW,
CW
Tc=25°C
OL445xL-2-W141
1407 1410 1413
nm
Spectral Width Pf= 2.0mW,CW,-20dB 0.2 0. 5 nm
Side-mode suppression
ratio SMSR Pf=2.0mW,CW 32 40 dB
Rise/Fall times Tr /Tf PAVG=1.0mW,20-80%
ExR*=9dB 0.09 0.15 ns
Relative Int ensity Nois e
RIN Pf=2.0mW,CW -140 -130 dB/Hz
Monitor Current Im Pf= 2.0mW,CW, Tc=+25°C 50 400 2200 A
Tracking Error** TRE Pf=2.0mW,CW -1 --- +1 dB
*ExR=Extinction ratio
**TRE=10*log(Pf@0+70°C)/(Pf@25°C)at Im hold(@25°C)
JOG-01128 Rev.5
OKI Electronics Components
Drawin g No: JOG-01128 Rev.5
- 3 -
Oki Electric Ind ustry Co., Ltd.
5.ABSOLUTE MAXIMUM RATING
(Tc = +25°C, unless otherwise specified)
Parameter Symbol Rating Unit
Fiber Output Power Pf 4 mW
LD Reverse Voltage Vrl 2 V
Monitor PD Forward Current Ifd 10 mA
Monitor PD Reverse Current Ird 3 mA
Monit or PD Reverse Voltage Vrd 30 V
Operating Case Temperature (Tc) Tc 0 to +70 C
Storage Temperature T stg -40 to +85 C
Lea d Soldering Temperature (10s) - 260 C
6.CONNECTOR AND FIBER SPECIFICATIONS
Parameter Specifications Unit
Type SM ---
Mode Field Diameter 9+/-1 m
Cladding Diameter 125+/-2 m
Jacket Diameter 900 m
Length 1(Min) m
Connector Type FC/SC/LC/MU/MU-J ---
JOG-01128 Rev.5
OKI Electronics Components
Drawin g No: JOG-01128 Rev.5
- 4 -
Oki Electric Ind ustry Co., Ltd.
7.ORDERING INFORMATION
OL 3 45 0 L – 2 – W131 – AF SC
8.OUTLINE DRAWING
Wavelength
2: 1.2 m
3: 1.3 m
4: 1.4
m
Flange type
AF: Angled Flange
SF: Straight Flange
NF: No Flange
Connector type
SC: SC Connector
FC: FC Connector
LC: LC Connector
MU: MU Connect or
MUJ: MU-J Connector
Pin Assignment
0: C type
1: A type
3: B type
(
See
P.5)
Peak Waveleng th
W127: 1.27 m
W129: 1.29 m
W131: 1.31 m
W133: 1.33 m
W135: 1.35 m
W137: 1.37 m
W139: 1.39 m
W141: 1.41 m
Length (mm)
JOG-01128 Rev.5
OKI Electronics Components
Drawin g No: JOG-01128 Rev.5
- 5 -
Oki Electric Ind ustry Co., Ltd.
All dimensions in millime ters
Flange Type
Pin Assignment
Straight flange No f lange Angled flange
A,C type
B type
C type
A type
OL3450L (C type) OL3451L (A type) OL3453L (B type)
JOG-01128 Rev.5
OKI Electronics Components
Drawin g No: JOG-01128 Rev.5
- 6 -
Oki Electric Ind ustry Co., Ltd.
9. SAFETY INFORMATION ON THIS PRODUCT
Warning
Laser Beam
A laser beam is emitted from this laser diode during operation.
The invisible or visible laser beam, directly or indirectly, may cause injury to
the eye
or loss of eyesight.
Do not look directly into the laser beam .
Avoid exposure to the laser beam, any reflected o r co llimated beam.
Caution
GaAs
Product
The product contains gallium arsenide, GaAs.
GaAs vapor and powder are hazardous to human health if inhaled, ingested or
swallowed.
Do not destory or burn the product.
Do not crush or chemically dis solve the product.
Do not put the product in the mouth.
Observe related laws and company regulations when discarding this product.
The product should be excluded from general industrial waste or household
garbage.
Caution
Optical Fiber
A glass-fiber is attached on the product. Handle with care.
When the fiber is broken or damaged, hand le carefully to avoi d injury from
the damaged part or fragmen ts.
All specifications described herein are subject to change without notice.
JOG-01128 Rev.5
OKI Electronics Components
Drawin g No: JOG-01128 Rev.5
- 7 -
Oki Electric Ind ustry Co., Ltd.
Notice
1. The information contained herein can change without notice owing to p roduct and/or technical improvements.
Before using the product, please make sur e that th e information being referred to is up-to-date.
2. The outline of action and examples for application cir cuits described h erein have been chosen as an
explanation for the stan dar d action and performance of the product. When plann ing to use the product, please
ensure that the external conditions ar e r eflected in the actual circuit, assembly, and pr ogram designs.
3. When designing your product, please use our product below the specified maximum ratings and within the
specified operating ranges in cluding, but not limited to, operating voltage, power dissipation, and operating
temperature.
4. Oki assumes no responsibility or liability whatsoever for any failur e 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 beyond the specified
maximum ratings or operation outside the specified operating range.
5. Neither indemnity again st n or license of a third party’s industrial and intellectual property right, etc. is
granted by us in connection with the use of th e product and/or the infor mation and drawings contained herein.
No responsibility is assumed by us for any infringement of a third party’s right which may result from the use
ther eof.
6. Th e products listed in this document are inten ded for use in gener al electronics equipment for commercial
applications (e.g., office automation, communication equipmen t, measurement equi pment, consumer
electronics, etc.). These products are not author ized for use in any system or application that requires special
or enhanced quality and reliability characteristics nor in any system or application wh ere the failure of such
system or application may result in the loss or damage of property , or death or injury to humans.
Such applications include, but are n ot limited to, traffic and autom otive equipment, safety devices, aerospace
equipment, nuclear pow er control, medical equipment, and life-support systems.
7. Certain products in this document may need government approval before they can be exported to particular
coun tries. Th e purchaser assumes the responsibility of deter minin g the legality of export of these products and
will take appropriate and necessary steps at their ow n expense for these.
8. No part of the contents contained herein ma y be reprinted or reproduced without our prior permission.
Sales Support
JAPAN/ASIA Oki Electric Industry Co., Ltd.
550-1, Higashiasakawa-cho, Hachioji-shi, Tokyo 193-8550
Phone: +81-426-62-6646
INTERNET: http://www.oki.com
AMERICA Oki Optical Components
785 North Mary Avenue, Sunnyvale, CA 94086
Phone: +1-408-737-6379 Fax: +1-408-737-6579
INTERNET: http://www.okioptical.com
EUROPE Oki Electric Europe GmbH
D-41460 Neuss, Germany
Phone: +49-2131-15960 Fax: +49-2131-103539
INTERNET: http://www.oki-europe.de Copyright 2005 Oki Electric Industry Co., Ltd
