Photoparametric amplifier/converter in hightwave communication systems

Author

Khanifar, A. ; Anand, V. ; Parker, A.E.

Author_Institution

Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, WC 1E 7JE, UK.

fYear

1993

fDate

6-10 Sept. 1993

Firstpage

314

Lastpage

316

Abstract

The development of a low noise receiver using the photoparametric effect is discussed in this paper. Photoparametric amplifiers are similar to electrical parametric amplifiers with the distinction that they use a photodiode instead of a varactor to perform photodetection and parametric amplification simultaneously. These amplifiers are also capable of performing frequency conversion required in certain applications. The photoparametric amplifier/converter can be used as part of a conventional wide band optical receiver/converter offering improved noise performance or as a low noise detector/ converter in microwave subcarrier multiplexed systems. A simulation technique has been developed to optimise amplifier/ converter performance and the practical results are presented along with those obtained by analysis and simulation.

Keywords

Analytical models; Frequency conversion; Low-noise amplifiers; Microwave amplifiers; Optical amplifiers; Optical noise; Optical receivers; Photodiodes; Semiconductor optical amplifiers; Varactors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1993. 23rd European

Conference_Location

Madrid, Spain

Type

conf

DOI

10.1109/EUMA.1993.336879

Filename

4136608