Pulse time modulation techniques for optical fibre communications

Wilson, Brett and Ghassemlooy, Zabih (1995) Pulse time modulation techniques for optical fibre communications. In: Analogue Optical Fibre Communications. Institution of Engineering and Technology, pp. 89-121. ISBN 9781849194600

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Official URL: http://dx.doi.org/10.1049/PBTE032E_ch4

Abstract

This chapter has surveyed and reviewed the range of PTM techniques available for fibre transmission and outlined their advantages from the standpoint of bandwidth-efficient modulation of analogue-sourced signals. A general classification method has been described by which different members of the PTM family may be categorised. Equations have been presented to describe the modulation spectrum for each of the different methods. To explore the high frequency potential of PTM the interaction between distortion performance and minimum sampling ratio as a result of sidetone overlap has been examined. Calculations have indicated that, operating above threshold, SWFM could, for example, offer an improvement factor of almost 20 dB for a system restricted to a transmission channel bandwidth of 1 GHz operating with a maximum input signal frequency of 100 MHz.

Item Type: Book Section
Uncontrolled Keywords: optical modulation, optical fibre communication, distortion, pulse time modulation
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 24 Apr 2014 11:27
Last Modified: 10 Aug 2015 11:40
URI: http://nrl.northumbria.ac.uk/id/eprint/16114

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