A 560 Mbit/s FSK modulation/heterodyne detection free space optical link

Author

Nawaz, Muhammad ; Pescod, C.R.

Author_Institution

Optical Commun. Group, GEC-Marconi Res. Centre, Chelmsford, UK

fYear

1990

fDate

32885

Abstract

Reviews the performance of heterodyne and homodyne coherent detection techniques and their advantages over a direct detection system. Theoretical analysis and factors affecting the design of a frequency shift keyed (FSK) modulation/heterodyne detection optical link using a nonsynchronous dual filter demodulation system suitable for intersatellite link (ISL) use is discussed. The design of the various subsystems including the optical transmitter, optical receiver, optical interfaces, IF amplifier, frequency discriminator and FSK data demodulator are described for an experimental system currently being constructed

Keywords

digital communication systems; frequency shift keying; optical communication equipment; optical links; optical modulation; satellite relay systems; signal detection; 560 Mbit/s; FSK data demodulator; FSK modulation; IF amplifier; direct detection system; free space optical link; frequency discriminator; frequency shift keyed; heterodyne detection; homodyne coherent detection; intersatellite link; nonsynchronous dual filter demodulation system; optical interfaces; optical receiver; optical transmitter;

fLanguage

English

Publisher

iet

Conference_Titel

Optical Intersatellite Links and On-Board Techniques, IEE Colloquium on

Conference_Location

London

Type

conf

Filename

189660