Very large bandwidth continuous time analogue equaliser in InP DHBT for beyond-100 GBd optical communication applications

The study, design and measurement of a continuous time analogue equaliser based on a differential cascode amplifier cell, using indium phosphide double heterojunction bipolar transistors (DHBTs) reaching an fT/fmax of 370/340 GHz are reported. A bandwidth of more than 110 GHz is achieved and a peaki...

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Veröffentlicht in:	Electronics letters 2016-01, Vol.52 (2), p.135-137
Hauptverfasser:	Mettetal, R, Dupuy, J.-Y, Jorge, F, Riet, M, Nodjiadjim, V, Konczykowska, A, Ouslimani, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplifiers Analogue Bandwidth beyond‐100 GBd optical communication bit rate 205 Gbit/s continuous time analogue equaliser differential amplifiers differential cascode amplifier cell double heterojunction bipolar transistors equalisers frequency 95 GHz Heterojunction bipolar transistors III‐V semiconductors indium compounds indium phosphide Indium phosphides InP InP DHBT Noise levels Optical communication Semiconductor devices Simulation very large bandwidth
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Beschreibung
Zusammenfassung:	The study, design and measurement of a continuous time analogue equaliser based on a differential cascode amplifier cell, using indium phosphide double heterojunction bipolar transistors (DHBTs) reaching an fT/fmax of 370/340 GHz are reported. A bandwidth of more than 110 GHz is achieved and a peaking of 18 dB at 95 GHz is reached. Simulations demonstrated an equalisation at 205 Gbit/s. This is believed to be the highest frequency peaking reported to date.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2015.3364