Pulse position modulation for a subcarrier-multiplexed optical fiber transmission system

Ghassemlooy, Zabih and Wickramasinghe, Rasitha (1996) Pulse position modulation for a subcarrier-multiplexed optical fiber transmission system. In: All-Optical Communication Systems: Architecture, Control, and Network Issues II. SPIE, pp. 70-78. ISBN 9780819423214

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Official URL: http://dx.doi.org/10.1117/12.256368

Abstract

Subcarrier multiplexed (SCM) optical network s offer a near to medium term alternative solution over high cost, evolving digital technology to distribute broadband services. Majority of existing systems are based on analogue optical transmission techniques and their principle disadvantage is the sensitivity to noise and system nonlinearities. Therefore, conventional SCM systems impose stringent noise and linearity requirements and as a result their performance is limited. A simple and attractive solution is to introduce an appropriate second stage modulator in order to improve the receiver sensitivity, hence the system performance.In this paper a SCM optical transmission system employing pulse position modulation as a second stage modulator, for transmission of video, audio and data channels is reported. Signal to noise ratio measurements obtained shows an improvement in optical receiver sensitivity compared with standard SCM systems.

Item Type: Book Section
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 29 Apr 2014 09:03
Last Modified: 10 Aug 2015 11:40
URI: http://nrl.northumbria.ac.uk/id/eprint/16185

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