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