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D2526G872

Description
D2570, D2526, D2555 Wavelength-Selected Direct Modulated Isolated DFB Laser Module
File Size115KB,12 Pages
ManufacturerAgere System(LSI Logic)
Download Datasheet View All

D2526G872 Overview

D2570, D2526, D2555 Wavelength-Selected Direct Modulated Isolated DFB Laser Module

Data Sheet, Rev. 3
July 2001
D2570, D2526, D2555 Wavelength-Selected
Direct Modulated Isolated DFB Laser Module
Applications
s
Three direct-modulated DWDM families available
to meet a number of OC-48/STM-16 applications:
— Extended reach (100 km)
— Very long reach (170 km)
— Metro DWDM
— Digital video
Product Codes
Product
Code
The 1.5
µm
D2570, D2526G, and D2555 Laser Modules are
available in a 14-pin, hermetic, butterfly package.
Peak
Power
10 mW
2 mW
2 mW
Dispersion
Performance
1800 ps/nm (100 km)
1800 ps/nm (100 km)
3000 ps/nm (170 km)
D2570H
D2526G
D2555G
Features
s
ITU wavelengths available from
1528.77 nm —1610.06 nm
SONET/SDH compatible up to OC-48/STM-16
Temperature tunable for precise wavelength
selection
Integrated optical isolator
High-performance, multiquantum well (MQW)
distributed-feedback (DFB) laser
Industry-standard, 14-pin butterfly package
Characterized at 2.488 Gbits/s (NRZ)
InGaAs, PIN photodetector back-facet monitor
Low threshold current
High-reliability, hermetic packaging
Excellent long-term wavelength stability can elimi-
nate the need for external wavelength locker
Qualified to meet the intent of
Telcordia Technolo-
gies
* 468
Description
The Direct Modulated Isolated DFB Laser Module
contains an internally cooled, InGaAs, MQW, distrib-
uted-feedback (DFB) laser designed for 1.5
µm
appli-
cations. The following three direct-modulation DWDM
product families have been established to meet vari-
ous OC-48/STM-16 system applications:
s
s
s
s
s
s
s
s
s
s
s
D2526-type: designed to be used in OC-48/
STM-16 (2.488 Gbits/s) for extended reach, dense
WDM applications (1800 ps/nm). The wavelength
of the laser can be temperature-tuned for precise
wavelength selection by adjusting the temperature
of the internal thermoelectric cooler.
D2555-type: high-performance device designed for
very low dispersion; used in fiber spans exceeding
170 km (3000 ps/nm).
D2570-type: high-power, direct-modulated laser
eliminates the need for optical amplifiers in DWDM
many applications.
s
s
s
*
Telcordia Technologies
is a trademark of Telcordia Technologies,
Inc.
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