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Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers

Physical systems with co-existence and interplay of processes featuring distinct spatio-temporal scales are found in various research areas ranging from studies of brain activity to astrophysics. The complexity of such systems makes their theoretical and experimental analysis technically and concept...

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Autores principales: Churkin, D. V., Sugavanam, S., Tarasov, N., Khorev, S., Smirnov, S. V., Kobtsev, S. M., Turitsyn, S. K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4430819/
https://www.ncbi.nlm.nih.gov/pubmed/25947951
http://dx.doi.org/10.1038/ncomms8004
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author Churkin, D. V.
Sugavanam, S.
Tarasov, N.
Khorev, S.
Smirnov, S. V.
Kobtsev, S. M.
Turitsyn, S. K.
author_facet Churkin, D. V.
Sugavanam, S.
Tarasov, N.
Khorev, S.
Smirnov, S. V.
Kobtsev, S. M.
Turitsyn, S. K.
author_sort Churkin, D. V.
collection PubMed
description Physical systems with co-existence and interplay of processes featuring distinct spatio-temporal scales are found in various research areas ranging from studies of brain activity to astrophysics. The complexity of such systems makes their theoretical and experimental analysis technically and conceptually challenging. Here, we discovered that while radiation of partially mode-locked fibre lasers is stochastic and intermittent on a short time scale, it exhibits non-trivial periodicity and long-scale correlations over slow evolution from one round-trip to another. A new technique for evolution mapping of intensity autocorrelation function has enabled us to reveal a variety of localized spatio-temporal structures and to experimentally study their symbiotic co-existence with stochastic radiation. Real-time characterization of dynamical spatio-temporal regimes of laser operation is set to bring new insights into rich underlying nonlinear physics of practical active- and passive-cavity photonic systems.
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spelling pubmed-44308192015-05-23 Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers Churkin, D. V. Sugavanam, S. Tarasov, N. Khorev, S. Smirnov, S. V. Kobtsev, S. M. Turitsyn, S. K. Nat Commun Article Physical systems with co-existence and interplay of processes featuring distinct spatio-temporal scales are found in various research areas ranging from studies of brain activity to astrophysics. The complexity of such systems makes their theoretical and experimental analysis technically and conceptually challenging. Here, we discovered that while radiation of partially mode-locked fibre lasers is stochastic and intermittent on a short time scale, it exhibits non-trivial periodicity and long-scale correlations over slow evolution from one round-trip to another. A new technique for evolution mapping of intensity autocorrelation function has enabled us to reveal a variety of localized spatio-temporal structures and to experimentally study their symbiotic co-existence with stochastic radiation. Real-time characterization of dynamical spatio-temporal regimes of laser operation is set to bring new insights into rich underlying nonlinear physics of practical active- and passive-cavity photonic systems. Nature Pub. Group 2015-05-07 /pmc/articles/PMC4430819/ /pubmed/25947951 http://dx.doi.org/10.1038/ncomms8004 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Churkin, D. V.
Sugavanam, S.
Tarasov, N.
Khorev, S.
Smirnov, S. V.
Kobtsev, S. M.
Turitsyn, S. K.
Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
title Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
title_full Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
title_fullStr Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
title_full_unstemmed Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
title_short Stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
title_sort stochasticity, periodicity and localized light structures in partially mode-locked fibre lasers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4430819/
https://www.ncbi.nlm.nih.gov/pubmed/25947951
http://dx.doi.org/10.1038/ncomms8004
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