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D2525P Datasheet, PDF (1/10 Pages) Agere Systems – Wavelength-Selected D2525P Isolated DFB Laser Module with PMF
Data Sheet
March 2000
Wavelength-Selected D2525P
Isolated DFB Laser Module with PMF
Applications
s Telecommunications
— SONET/SDH OC-48/STM-16, OC-192/STM-64
— Extended and ultralong reach
— Undersea systems
— Dense WDM systems
s Digital video
The 1.5 µm D2525P Laser Module is available in a 14-pin, her-
metic, butterfly package.
Features
s ITU wavelengths available from
1529.55 nm —1610.06 nm
s Integrated optical isolator
s High-performance, multiquantum-well (MQW),
distributed-feedback (DFB) laser
s Industry-standard, 14-pin butterfly package
s Hermetic package
s InGaAs, PIN photodetector back-facet monitor
s Polarization-maintaining fiber pigtail
s For use with lithium niobate modulators
s High reliability
s Narrow linewidth
s High optical power available
Description
The D2525P family of DFB laser modules is
designed to be used with a lithium niobate external
modulator (see Table 4). The laser module features a
polarization-maintaining fiber (PMF) pigtail, enabling
it to be directly connected to a modulator without the
need of a polarization controller. The PMF maintains
the polarization of the output light to a consistent ori-
entation. This allows the D2525P to be used as a CW
light source for systems requiring extremely low chirp
such as undersea or 10 Gbits/s systems. The module
contains a multiquantum-well (MQW), distributed-
feedback (DFB) laser. This device nominally has an
output power of 10 mW. The wavelength of the laser
can be temperature-tuned for more precise wave-
length selection by adjusting the temperature of the
internal thermoelectric cooler.