Simplified model of an FSK-to-ASK direct-detection system using a Fabry-Perot demodulator

Author

Willner, A.E.

Author_Institution

AT&T Bell Lab., Holmdel, NJ, USA

Volume

2

Issue

5

fYear

1990

fDate

5/1/1990 12:00:00 AM

Firstpage

363

Lastpage

366

Abstract

Design guidelines are presented for a direct-detection optical transmission system in which an FSK (frequency-shift-keyed) signal is converted to ASK (amplitude-shift-keyed format) by a tunable Fabry-Perot filter demodulator/demultiplexer. The analysis gives an estimated set of conditions for the proper Fabry-Periot (FP) bandwidth and tone frequency deviation that reduces the system power penalities. This is accomplished by calculating the tonal power transmitted through the FP; this simplifying assumption neglects pattern dependences but provides a simple, useful expression for predicting regions of rapidly increasing power penalties. The generated curves agree well with experimental results for three different systems.<>

Keywords

amplitude modulation; frequency shift keying; multiplexing; optical communication equipment; optical filters; optical modulation; tuning; FSK-to-ASK direct-detection system; Fabry-Perot bandwidth; Fabry-Perot demodulator; Fabry-Perot filter demultiplexer; amplitude-shift-keyed; direct-detection optical transmission system; frequency-shift-keyed; pattern dependences; system power penalities; tonal power; tone frequency; tunable Fabry-Perot filter demodulator; Amplitude shift keying; Fabry-Perot; Frequency conversion; Frequency estimation; Frequency shift keying; Guidelines; Optical design; Optical filters; Optical frequency conversion; Signal design;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.54707

Filename

54707