Design of wideband current-mode CMOS fiber-optic preamplifier using Z matrix analysis

Author

Bo, Pan ; Baoxin, Gao

Author_Institution

State Key Lab on Microwave & Digital Commun., Tsinghua Univ., Beijing, China

fYear

2002

fDate

17-19 Aug. 2002

Firstpage

944

Lastpage

947

Abstract

To obtain input matching, wideband fiber-optic preamplifier fabricated with CMOS technology has additional problems different from GaAs technology. Traditional solutions of input matching suffer from bad noise performance. Based on Z matrix analysis, a novel current mode preamplifier that is composed of a Wilson current amplifier and a transfiguration of a gain-boost cell using CMOS technology is proposed. The novel architecture demonstrates good input and output impedance matching with 50 Ω transmission line and low average noise spectral density simultaneously, thus it has a potential for hybrid integration with photodetectors and limiting amplifiers.

Keywords

CMOS analogue integrated circuits; current mirrors; current-mode circuits; impedance matching; integrated optoelectronics; optical fibre communication; preamplifiers; wideband amplifiers; 50 ohm; Wilson current amplifier; Z matrix analysis; gain-boost cell; hybrid integration; input impedance matching; input matching; output impedance matching; spectral density; wideband current-mode CMOS fiber-optic preamplifier; CMOS technology; Detectors; Gallium arsenide; Impedance matching; Optical amplifiers; Optical fiber communication; Preamplifiers; Resistors; Transmission line matrix methods; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on

Print_ISBN

0-7803-7486-X

Type

conf

DOI

10.1109/ICMMT.2002.1187858

Filename

1187858