Multi-scale polarisation phenomena


Multi-scale methods that separate different time or spatial scales are among the most powerful techniques in physics, especially in applications that study nonlinear systems with noise. When the time scales (noise and perturbation) are of the same order, the scales separation becomes impossible. Thus, the multi-scale approach has to be modified to characterise a variety of noise-induced phenomena. Here, based on stochastic modelling and analytical study, we demonstrate in terms of the fluctuation-induced phenomena and Hurst R/S analysis metrics that the matching scales of random birefringence and pump–signal states of polarisation interaction in a fibre Raman amplifier results in a new random birefringence-mediated phenomenon, which is similar to stochastic anti-resonance. The observed phenomenon, apart from the fundamental interest, provides a base for advancing multi-scale methods with application to different coupled nonlinear systems ranging from lasers (multimode, mode-locked, random, etc.) to nanostructures (light-mediated conformation of molecules and chemical reactions, Brownian motors, etc.).

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Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
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Publication ISSN: 2047-7538
Last Modified: 28 Feb 2024 08:12
Date Deposited: 16 Jan 2017 11:10
PURE Output Type: Article
Published Date: 2016-01-15
Accepted Date: 2015-08-11
Submitted Date: 2015-04-20
Authors: Kalashnikov, Vladimir
Sergeyev, Sergey V. (ORCID Profile 0000-0002-1515-5019)
Jacobsen, Gunnar
Popov, Sergei
Turitsyn, Sergei K. (ORCID Profile 0000-0003-0101-3834)



Version: Published Version

License: Creative Commons Attribution

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