D2570H47 Datasheet | Agere Systems

Features s ITU wavelengths available from 1528.77 nm - 1610.06 nm SONET/SDH patible 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) In Ga As, PIN photodetector back-facet monitor Low threshold current High-reliability, hermetic packaging Excellent long-term wavelength stability can eliminate the need for external wavelength locker Qualified to meet the intent of Telcordia Technologies - 468 Description The Direct Modulated Isolated DFB Laser Module contains an internally cooled, In Ga As, MQW, distributed-feedback (DFB) laser designed for 1.5 µm applications. The following three direct-modulation DWDM product families have been established to meet various OC-48/STM-16 system applications: s s s s s s s s s s s 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. s s s - Telcordia Technologies is a trademark of Telcordia Technologies, Inc. D2570, D2526G, D2555 Wavelength-Selected Direct Modulated Isolated DFB Laser Module Data Sheet, Rev. 3 July 2001 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 d B. Pin Information Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Name Thermistor Thermistor Laser dc Bias (Cathode) (- ) Back-facet Monitor...