Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

20-40 Gb/s 0.2-mu m GaAs HEMT chip set for optical data receiver

20-40 Gb/s 0.2-Mikrometer GaAs HEMT Chip Satz für optische Datenempfänger


IEEE journal of solid-state circuits 32 (1997), No.9, pp.1384-1393 : Ill.
ISSN: 0018-9200
Journal Article
Fraunhofer IAF ()
clock recovery; demultiplexer; frequency divider; Frequenzteiler; Taktrückgewinnung

Using our 0.2-mu m AlGaAs/GaAs/AlGaAs quantum well high electron mobility transfer (HEMT) technology, we have developed a chip set for 20-40 Gb/s fiber-optical digital transmission systems. In this paper we describe five receiver chips: a limiting amplifier with a differential gain of 17 dB and a 3 dB bandwidth of 29.3 GHz, a 40 Gb/s clock recovery, a data decision and a 1:4 demultiplexer, both for bit rates of more than 40 Gb/s, and a static 1:4 divider with operating frequencies up to 30 GHz. All presented chips were characterized on wafer with 50-ohm coplanar test probes.