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Spectral correlations in a random distributed feedback fibre laser. / Sugavanam, Srikanth; Sorokina, Mariia; Churkin, Dmitry V.

In: Nature Communications, Vol. 8, 15514, 18.05.2017, p. 15514.

Research output: Contribution to journal › Article › peer-review

Harvard

Sugavanam, S, Sorokina, M & Churkin, DV 2017, 'Spectral correlations in a random distributed feedback fibre laser', Nature Communications, vol. 8, 15514, pp. 15514. https://doi.org/10.1038/ncomms15514

APA

Sugavanam, S., Sorokina, M., & Churkin, D. V. (2017). Spectral correlations in a random distributed feedback fibre laser. Nature Communications, 8, 15514. [15514]. https://doi.org/10.1038/ncomms15514

Vancouver

Sugavanam S, Sorokina M, Churkin DV. Spectral correlations in a random distributed feedback fibre laser. Nature Communications. 2017 May 18;8:15514. 15514. doi: 10.1038/ncomms15514

Author

Sugavanam, Srikanth ; Sorokina, Mariia ; Churkin, Dmitry V. / Spectral correlations in a random distributed feedback fibre laser. In: Nature Communications. 2017 ; Vol. 8. pp. 15514.

BibTeX

@article{61a512818d044745a1df8fa093ccec88,
title = "Spectral correlations in a random distributed feedback fibre laser",
abstract = "Random distributed feedback fibre lasers belong to the class of random lasers, where the feedback is provided by amplified Rayleigh scattering on sub-micron refractive index inhomogenities randomly distributed over the fibre length. Despite the elastic nature of Rayleigh scattering, the feedback mechanism has been insofar deemed incoherent, which corresponds to the commonly observed smooth generation spectra. Here, using a real-time spectral measurement technique based on a scanning Fabry-P{\'e}rot interferometer, we observe long-living narrowband components in the random fibre laser's spectrum. Statistical analysis of the ∼104 single-scan spectra reveals a preferential interspacing for the components and their anticorrelation in intensities. Furthermore, using mutual information analysis, we confirm the existence of nonlinear correlations between different parts of the random fibre laser spectra. The existence of such narrowband spectral components, together with their observed correlations, establishes a long-missing parallel between the fields of random fibre lasers and conventional random lasers.",
keywords = "BACKSCATTERING, NOISE, STATISTICAL PROPERTIES",
author = "Srikanth Sugavanam and Mariia Sorokina and Churkin, {Dmitry V.}",
year = "2017",
month = may,
day = "18",
doi = "10.1038/ncomms15514",
language = "English",
volume = "8",
pages = "15514",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Spectral correlations in a random distributed feedback fibre laser

AU - Sugavanam, Srikanth

AU - Sorokina, Mariia

AU - Churkin, Dmitry V.

PY - 2017/5/18

Y1 - 2017/5/18

N2 - Random distributed feedback fibre lasers belong to the class of random lasers, where the feedback is provided by amplified Rayleigh scattering on sub-micron refractive index inhomogenities randomly distributed over the fibre length. Despite the elastic nature of Rayleigh scattering, the feedback mechanism has been insofar deemed incoherent, which corresponds to the commonly observed smooth generation spectra. Here, using a real-time spectral measurement technique based on a scanning Fabry-Pérot interferometer, we observe long-living narrowband components in the random fibre laser's spectrum. Statistical analysis of the ∼104 single-scan spectra reveals a preferential interspacing for the components and their anticorrelation in intensities. Furthermore, using mutual information analysis, we confirm the existence of nonlinear correlations between different parts of the random fibre laser spectra. The existence of such narrowband spectral components, together with their observed correlations, establishes a long-missing parallel between the fields of random fibre lasers and conventional random lasers.

AB - Random distributed feedback fibre lasers belong to the class of random lasers, where the feedback is provided by amplified Rayleigh scattering on sub-micron refractive index inhomogenities randomly distributed over the fibre length. Despite the elastic nature of Rayleigh scattering, the feedback mechanism has been insofar deemed incoherent, which corresponds to the commonly observed smooth generation spectra. Here, using a real-time spectral measurement technique based on a scanning Fabry-Pérot interferometer, we observe long-living narrowband components in the random fibre laser's spectrum. Statistical analysis of the ∼104 single-scan spectra reveals a preferential interspacing for the components and their anticorrelation in intensities. Furthermore, using mutual information analysis, we confirm the existence of nonlinear correlations between different parts of the random fibre laser spectra. The existence of such narrowband spectral components, together with their observed correlations, establishes a long-missing parallel between the fields of random fibre lasers and conventional random lasers.

KW - BACKSCATTERING

KW - NOISE

KW - STATISTICAL PROPERTIES

UR - http://www.scopus.com/inward/record.url?scp=85019631206&partnerID=8YFLogxK

U2 - 10.1038/ncomms15514

DO - 10.1038/ncomms15514

M3 - Article

C2 - 28516955

AN - SCOPUS:85019631206

VL - 8

SP - 15514

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 15514

ER -

ID: 9075975