Wave kinetics of random fibre lasers

D V. Churkin (), I V. Kolokolov, E V. Podivilov, I D. Vatnik, M A. Nikulin, S S. Vergeles, I S. Terekhov, V V. Lebedev, G. Falkovich, S A. Babin and S K. Turitsyn
Additional contact information
D V. Churkin: Aston Institute of Photonic Technologies, Aston University
I V. Kolokolov: Landau Institute for Theoretical Physics, Russian Academy of Sciences
E V. Podivilov: Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences
I D. Vatnik: Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences
M A. Nikulin: Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences
S S. Vergeles: Landau Institute for Theoretical Physics, Russian Academy of Sciences
I S. Terekhov: Novosibirsk State University
V V. Lebedev: Landau Institute for Theoretical Physics, Russian Academy of Sciences
G. Falkovich: Weizmann Institute of Science
S A. Babin: Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences
S K. Turitsyn: Aston Institute of Photonic Technologies, Aston University

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Traditional wave kinetics describes the slow evolution of systems with many degrees of freedom to equilibrium via numerous weak non-linear interactions and fails for very important class of dissipative (active) optical systems with cyclic gain and losses, such as lasers with non-linear intracavity dynamics. Here we introduce a conceptually new class of cyclic wave systems, characterized by non-uniform double-scale dynamics with strong periodic changes of the energy spectrum and slow evolution from cycle to cycle to a statistically steady state. Taking a practically important example—random fibre laser—we show that a model describing such a system is close to integrable non-linear Schrödinger equation and needs a new formalism of wave kinetics, developed here. We derive a non-linear kinetic theory of the laser spectrum, generalizing the seminal linear model of Schawlow and Townes. Experimental results agree with our theory. The work has implications for describing kinetics of cyclical systems beyond photonics.

Date: 2015
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms7214 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7214

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms7214

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().