Wavelength-Selected D2525P Isolated DFB Laser Module with PMF
Description
Data Sheet March 2000
Wavelength-Selected D2525P Isolated DFB Laser Module with PMF
Applications
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Telecommunications — SONET/SDH OC-48/STM-16, OC-192/STM-64 — Extended and ultralong reach — Undersea systems — Dense WDM systems Digital video
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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 orientation.
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), distributedfeedback (DFB) laser.
This device nominally has an output power of 10 mW.
The wavelength of the laser can be temperature-tuned for more precise wavelength selection by adjusting the temperature of the internal thermoelectric cooler.
The 1.
5 µm D2525P Laser Module is available in a 14-pin, hermetic, butterfly package.
Features
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ITU wavelengths available from 1529.
55 nm —1610.
06 nm Integrated optical isolator High-performance, multiquantum-well (MQW), distributed-feedback (DFB) laser Industry-standard, 14-pin butterfly package Hermetic package InGaAs, PIN photodetector back-facet monitor Polarization-maintaining fiber pigtail For use with lithium niobate modulators High reliability Narrow linewidth High optical power available
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Wavelength-Selected D2525P Isolated DFB Laser Module with PMF
Data Sheet March 2000
Description (continued)
Controlled Feedback
The module contains an internal optical isolator that suppresses optical feedback in laser-based, fiber-optic systems.
Light reflected back to the laser is attenuated a minimum of 30 dB.
CORE STRESS ROD
PRINCIPAL POLARIZATION AXIS CLADDING INNER COATING (SILICON & ACRYLATE) OUTER C...
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