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), 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.

Features

■ 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

Applications

■ Telecommunications

— SONET/SDH OC-48/STM-16, OC-192/STM-64

— Extended and ultralong reach

— Undersea systems

— Dense WDM systems

■ Digital video