D2555

ITU wavelengths available from 1528.77 nm -1610.06 nm
SONET/SDH compatible up to OC-48/STM-16
Temperature tunable for precise wavelength selection
Integrated optical isolator
High-performance, multiquantum well (MQW) distributed-feedback (DFB) laser
Industry-standard, 14-pin butterfly package Characterized at 2.488 Gbits/s (NRZ)
InGaAs, PIN photodetector back-facet monitor
Low threshold current
High-reliability, hermetic packaging
Excellent long-term wavelength stability can elimi-nate the need for external wavelength locker
Qualified to meet the intent of gies* 468

 D2555, the Direct Modulated Isolated DFB Laser Module contains an internally cooled, InGaAs, MQW, distrib-uted-feedback (DFB) laser designed for 1.5 µm appli-cations. The following three direct-modulation DWDM product families have been established to meet vari-ous OC-48/STM-16 system applications:
   D2526-type: designed to be used in OC-48/STM-16 (2.488 Gbits/s) for extended reach, dense WDM applications (1800 ps/nm). The wavelength of the laser can be temperature-tuned for precise wavelength selection by adjusting the temperature of the internal thermoelectric cooler.

   D2555-type: high-performance device designed for very low dispersion; used in fiber spans exceeding 170 km (3000 ps/nm).

   D2570-type: high-power, direct-modulated laser eliminates the need for optical amplifiers in DWDM many applications.