Abstract

The transport capacity of worldwide telecommunication networks is steadily increasing, driven e.g. by the rapidly growing internet user community with its rising amount of transfered data, doubling more than twice a year [1]. Optical long-haul systems are consequently upgraded to 40 Gb/s data rates together with WDM multiplexing. The photoreceivers as key components in such systems should exhibit a bandwidth of about 40 GHz including also a good phase linearity. This work describes an on-going improvement in InP-based monolithic front-end integration of a waveguide-integrated photodiode (WG-int. PD) and a traveling wave amplifier (TWA), especially in terms of receiver bandwidth and group delay scatter.

© 2000 Optical Society of America