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Evaluation of Pearson correlation coefficient and Parisi parameter of replica symmetry breaking in a hybrid electronically addressable random fiber laser
Universidade Federal de Pernambuco, Brazil.
Universidade Federal de Pernambuco, Brazil.
RISE Research Institutes of Sweden.
KTH Royal Institute of Technology, Sweden.
Vise andre og tillknytning
2021 (engelsk)Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 29, nr 15, s. 24422-24433Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The hybrid electronically addressable random (HEAR) laser is a novel type of random fiber laser that presents the remarkable property of selection of the fiber section with lasing emission. Here we present a joint analysis of the correlations between intensity fluctuations at distinct wavelengths and replica symmetry breaking (RSB) behavior of the HEAR laser. We introduce a modified Pearson coefficient that simultaneously comprises both the Parisi overlap parameter and standard Pearson correlation coefficient. Our results highlight the contrast between the correlations and presence or not of RSB phenomenon in the spontaneous emission behavior well below threshold, replica-symmetric ASE regime slightly below threshold, and RSB phase with random lasing emission above threshold. In particular, in the latter we find that the onset of RSB behavior is accompanied by a stochastic dynamics of the lasing modes, leading to competition for gain intertwined with correlation and anti-correlation between modes in this complex photonic phase. 

sted, utgiver, år, opplag, sider
The Optical Society , 2021. Vol. 29, nr 15, s. 24422-24433
Emneord [en]
Fiber lasers, Stochastic systems, Intensity fluctuations, Joint analysis, Lasing emissions, Pearson coefficient, Pearson correlation coefficients, Random lasing, Replica symmetry breakings, Stochastic dynamics, Correlation methods
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Identifikatorer
URN: urn:nbn:se:ri:diva-55474DOI: 10.1364/OE.431981Scopus ID: 2-s2.0-85110392868OAI: oai:DiVA.org:ri-55474DiVA, id: diva2:1583328
Tilgjengelig fra: 2021-08-05 Laget: 2021-08-05 Sist oppdatert: 2022-09-15bibliografisk kontrollert

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