Description
The D2500-Type Digital Isolated DFB Laser Module  contains an internally cooled, InGaAsP, MQW, distributed-feedback (DFB) laser designed for 1.5 µm applications. The laser is designed to be used in OC-12/ STM-4 (622 Mbits/s) and OC-48/STM-16 (2.488 Gbits/ s) for long-reach and extended-reach applications. It is  also capable of low dispersion penalties (<2 dB) for use  with fiber spans exceeding 170 km (3000 ps/nm).

Features
■ Integrated optical isolator
■ SONET/SDH compatible up to OC-48/STM-16
■ High-performance, multiquantum-well (MQW), distributed-feedback (DFB) laser
■ Low dispersion penalty for long-reach and  extended-reach applications
■ Industry-standard, 14-pin butterfly package
■ Characterized at 2.488 Gbits/s (NRZ)
■ Wide operating case temperature range of  –40 °C to +70 °C
■ InGaAs, PIN photodetector back-facet monitor
■ Low threshold current
■ High reliability
■ High optical power available
■ Qualified to meet the intent of Telcordia Technologies * 468

Applications
■ Telecommunications:
    — SONET/SDH
    — Long reach
    — Interexchange
■ Digital video