Title :
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
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;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187858
