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Technology of InP-based 1.55- mu m ultrafast OEMMICs: 40-Gbit/s broad-band and 38/60-GHz narrow-band photoreceivers



IEEE Journal of Quantum Electronics 35 (1999), Nr.7, S.1024-31
ISSN: 0018-9197
Fraunhofer HHI ()
broadband networks; HEMT integrated circuits; iii-v semiconductors; indium compounds; integrated optoelectronics; mmic; mobile communication; optical receivers; optimisation; photodetectors; photodiodes; time division multiplexing; InP-based 1.55- mu m ultrafast oemmic; Gbit/s broad-band photoreceivers; GHz narrow-band photoreceivers; long-haul communication systems; broad-band mobile access systems; GHz carrier frequencies; ultrafast photoreceivers; InP-based optoelectronic microwave monolithic integrated circuits; independent optimization; waveguide-integrated pin pd; top-illuminated metal-semiconductor-metal pd; pin photodiode; amplifier designs; high electron mobility transistors; Gbit/s broadband photoreceiver; high-bit-rate time-division multiplexing systems; optic/millimeterwave converters; mobile communication systems; 1.55 mum; 40 Gbit/s; 38 GHz; 60 GHz; InP

For future long-haul communication systems operating at bitrates of 40 Gbit/s and for broad-band mobile access systems using 38- or 60-GHz carrier frequencies, ultrafast photoreceivers have to be provided. Therefore, an integration concept for InP-based optoelectronic microwave monolithic integrated circuits for the 1.55- mu m wavelength regime is demonstrated, which allows independent optimization of the constituting devices. Two different types of photodetectors (PDs), a waveguide-integrated PIN photodiode (PD) and a top-illuminated metal-semiconductor-metal PD, both having bandwidths of up to 70 GHz, have been developed. These are fabricated together with different amplifier designs employing high electron mobility transistors which exhibit transit frequencies of up to 90 GHz. The application to a 40-Gbit/s broadband photoreceiver for high-bit-rate time-division multiplexing systems is reported, as well as the application to 38- and 60-GHz narrow-band photoreceivers for use as optic/millimeterwave converters in mobile communication systems.