A low cost sub-carrier multiplexed PPM for optical fibre transmission systems

Author

Ghassemlooy, Z. ; Wickramasinghe, V.R.

Author_Institution

Sch. of Eng., Sheffield Hallam Univ., UK

Volume

44

Issue

1

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

99

Lastpage

107

Abstract

Sub-carrier multiplexed (SCM) optical fibre distributed broadband services suffer from system non-linearity and are sensitive to noise, thus imposing stringent noise and linearity requirements. As a result their performance is limited. However, system performance can be improved by incorporating a second stage modulator. In this paper a SCM optical transmission system employing pulse position modulation (PPM) as a second stage modulator for transmission of video, audio and data channels is reported. System measurements and theoretical predictions obtained are in close agreement and the results show an improvement in optical receiver sensitivity compared to a conventional SCM

Keywords

broadband networks; data communication; optical fibre networks; optical modulation; optical receivers; pulse position modulation; subcarrier multiplexing; visual communication; SCM optical transmission system; audio channel; data channel; distributed broadband services; low cost sub-carrier multiplexed PPM; noise; nonlinearity; optical fibre transmission systems; optical receiver sensitivity; pulse position modulation; second stage modulator; system performance; video channel; Costs; Linearity; Optical fibers; Optical modulation; Optical noise; Optical pulses; Optical receivers; Optical sensors; Pulse modulation; System performance;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.663735

Filename

663735