Hbt Transmitter and Data Regenerator Arrays for Wdm Optical Communications Application

Current research on next generation Wavelength Division Multiplexed (WDM) all optical networks has identified the need for arrays of laser driver circuits and arrays of receivers, clock recovery and decision circuits [l]. This paper will report on the development of three AlGaAs/GaAs HBT-based circuits: an 8-channel laser driver array and 4-channel signal regeneration arrays including the limiting amplifier, clock recovery and decision functions one intended for operation at 155 Mbit/sec and the other at 2.488 Gbit/sec.