Title :
On the design of gallium arsenide receiver pre-amplifiers for optical communication systems
Author :
Robinson, A.N. ; Haigh, D.G. ; Toumazou, C.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll., London, UK
Abstract :
A preliminary investigation is presented into some ideas concerning GaAs preamplifier designs for optical communication systems. After a brief review of existing preamplifier designs a recently published transimpedance amplifier design is modified in order to enhance performance using cascoding techniques and the introduction of a current mirror in the forward path of the feedback system. Finally, the alternative approach of a common-gate amplifier which avoids feedback is explored with a view to future novel architectures based on current amplification
Keywords :
III-V semiconductors; Schottky gate field effect transistors; field effect integrated circuits; gallium arsenide; optical communication equipment; preamplifiers; receivers; GaAs; cascoded amplifier; cascoding; common-gate amplifier; current amplification; current mirror; feedback system; forward path; optical communication systems; optical receivers; preamplifier designs; semiconductors; transimpedance amplifier; Circuits; Gallium arsenide; Operational amplifiers; Optical amplifiers; Optical design; Optical feedback; Optical fiber communication; Optical receivers; Photodiodes; Semiconductor device noise;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176174
