Self-Imaging based Dispersion Compensation: Performance and Tolerance of the System

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contributor.author Guizani, Sghaier en_US
contributor.author Hamam, Habib en_US
date.accessioned 2009-12-29T10:35:59Z en_US
date.available 2009-12-29T10:35:59Z en_US
date.issued 2007-11-24 en_US
identifier.citation Guizani, S.; Hamam, H., "Self-Imaging based Dispersion Compensation: Performance and Tolerance of the System," Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on , vol., no., pp.920-923, 24-27 Nov. 2007 en_US
identifier.uri http://dx.doi.org/10.1109/ICSPC.2007.4728470 en_US
identifier.uri http://hdl.handle.net/10576/10568 en_US
description.abstract Transmitting ultra wideband (UWB) pulse signals over optical fiber is a certain sign of chromatic dispersion (CD) existence. CD is a serious problem in optical transmission because the velocity of light depends on the frequencies. The effect is strengthened when the optical pulse gets shorter because its spectrum gets broader. This results in a temporal broadening of the initial pulse. The signal is then deformed during propagation, resulting in inter-symbol interference (ISI). Alteration is more pronounced if the optical signal travels further, yielding to shortening the inter-repeater distance. We propose a method for chromatic dispersion compensation. It is based on the temporal Talbot effect that is observed when a periodic signal propagates through a dispersive medium at a given distance named Talbot distance ZT. Our method consists in adding a portion of a dispersive fiber so that the overall propagation distance corresponds to one specific distance, called a fractional Talbot distance. Because a specific length of a generally long fiber is put into play, the tolerance permitted by the approach needs particular attention. en_US
language.iso en en_US
publisher IEEE en
subject optical transmission en_US
subject UWB en_US
subject Talbot effect en_US
subject Inter-Symbol Interference en_US
subject Chromatic dispersion en_US
title Self-Imaging based Dispersion Compensation: Performance and Tolerance of the System en_US
type Article en_US


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