Real-time intensity domain characterization of fibre lasers using spatio-temporal dynamics


Fibre lasers are light sources that are synonymous with stability. They can give rise to highly coherent continuous-wave radiation, or a stable train of mode locked pulses with well-defined characteristics. However, they can also exhibit an exceedingly diverse range of nonlinear operational regimes spanning a multi-dimensional parameter space. The complex nature of the dynamics poses significant challenges in the theoretical and experimental studies of such systems. Here, we demonstrate how the real-time experimental methodology of spatio-temporal dynamics can be used to unambiguously identify and discern between such highly complex lasing regimes. This two-dimensional representation of laser intensity allows the identification and tracking of individual features embedded in the radiation as they make round-trip circulations inside the cavity. The salient features of this methodology are highlighted by its application to the case of Raman fibre lasers and a partially mode locked ring fibre laser operating in the normal dispersion regime.

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Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license ( ERC project ULTRALASER, H2020 project CARDIALLY, Russian Ministry of Science and Education (14.584.21.0014); Russian Foundation for Basic Research (projects 16-32-60153, 15-02-07925).
Uncontrolled Keywords: fibre lasers,real-time characterization,nonlinear dynamics,spatio-temporal dynamics,self-organization,pattern formation,Fluid Flow and Transfer Processes,Process Chemistry and Technology,Computer Science Applications,Engineering(all),Materials Science(all),Instrumentation
Publication ISSN: 2076-3417
Last Modified: 19 Jan 2024 18:08
Date Deposited: 29 Feb 2016 12:05
Full Text Link: http://www.mdpi ... 076-3417/6/3/65
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Special issue
Published Date: 2016-02-25
Accepted Date: 2016-02-06
Submitted Date: 2016-01-14
Authors: Sugavanam, Srikanth
Tarasov, Nikita (ORCID Profile 0000-0002-0583-8449)
Churkin, Dmitry V.



Version: Published Version

License: Creative Commons Attribution

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