Collective dynamics of evanescently coupled excitable lasers with saturable absorber

Abstract

We present a numerical study of the collective dynamics in a population of coupled excitable lasers with saturable absorber. At variance with previous studies where real-valued (lossy) coupling was considered, we focus here on the purely imaginary coupling (evanescent wave coupling). We show that evanescently coupled excitable lasers exhibit synchronization like the lossy coupled ones. Furthermore, we show that out-of-diagonal disorder-induced localization of excitability takes place for imaginary coupling too, but it can be frustrated by nonvanishing linewidth enhancement factor. Graphical abstract: [Figure not available: see fulltext.].

Publication DOI: https://doi.org/10.1140/epjb/e2019-90634-8
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © The Authors 2018
Uncontrolled Keywords: Electronic, Optical and Magnetic Materials,Condensed Matter Physics
Publication ISSN: 1434-6036
Full Text Link: https://arxiv.o ... /1812.03691.pdf
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://link.sp ... 2Fe2019-90634-8 (Publisher URL)
PURE Output Type: Article
Published Date: 2019-06-03
Accepted Date: 2019-03-08
Authors: Lamperti, Marco
Perego, Auro M. (ORCID Profile 0000-0001-5211-6513)

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