Mode-Switching induced super-thermal bunching in quantum-dot microlasers

Christoph Redlich; Benjamin Lingnau; Steffen Holzinger; Elisabeth Schlottmann; Soren Kreinberg; Christian Schneider; Martin Kamp; Sven Höfling; Janik Wolters; Stephan Reitzenstein; Kathy Ludge

doi:10.1088/1367-2630/18/6/063011

Mode-Switching induced super-thermal bunching in quantum-dot microlasers

Christoph Redlich, Benjamin Lingnau, Steffen Holzinger, Elisabeth Schlottmann, Soren Kreinberg, Christian Schneider, Martin Kamp, Sven Höfling, Janik Wolters, Stephan Reitzenstein, Kathy Ludge

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

Abstract

The super-thermal photon bunching in quantum-dot micropillar lasers is investigated both experimentally and theoretically via simulations driven by dynamic considerations. Using stochastic multi-mode rate equations we obtain very good agreement between experiment and theory in terms of intensity profiles and intensity-correlation properties of the examined quantum-dot micro-laser’s emission. Further investigations of the time-dependent emission show that super-thermal photon bunching occurs due to irregular mode-switching events in the bimodal lasers. Our bifurcation analysis reveals that these switchings find their origin in an underlying bistability, such that spontaneous emission noise is able to effectively perturb the two competing modes in a small parameter region. We thus ascribe the observed high photon correlation to dynamical multistabilities rather than quantum mechanical correlations.

Original language	English
Article number	063011
Number of pages	11
Journal	New Journal of Physics
Volume	18
Early online date	9 Jun 2016
DOIs	https://doi.org/10.1088/1367-2630/18/6/063011
Publication status	Published - Jun 2016

Keywords

Nonlinear dynamics
Microlaser
Correlation properties
Photon statistics
Noise and multimode dynamics
Quantum dot laser

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Redlich_2016_ModeSwitching_NJP_CC
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Final published version, 1.68 MBLicence: CC BY

Cite this

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title = "Mode-Switching induced super-thermal bunching in quantum-dot microlasers",

abstract = "The super-thermal photon bunching in quantum-dot micropillar lasers is investigated both experimentally and theoretically via simulations driven by dynamic considerations. Using stochastic multi-mode rate equations we obtain very good agreement between experiment and theory in terms of intensity profiles and intensity-correlation properties of the examined quantum-dot micro-laser{\textquoteright}s emission. Further investigations of the time-dependent emission show that super-thermal photon bunching occurs due to irregular mode-switching events in the bimodal lasers. Our bifurcation analysis reveals that these switchings find their origin in an underlying bistability, such that spontaneous emission noise is able to effectively perturb the two competing modes in a small parameter region. We thus ascribe the observed high photon correlation to dynamical multistabilities rather than quantum mechanical correlations.",

keywords = "Nonlinear dynamics, Microlaser, Correlation properties, Photon statistics, Noise and multimode dynamics, Quantum dot laser",

author = "Christoph Redlich and Benjamin Lingnau and Steffen Holzinger and Elisabeth Schlottmann and Soren Kreinberg and Christian Schneider and Martin Kamp and Sven H{\"o}fling and Janik Wolters and Stephan Reitzenstein and Kathy Ludge",

note = "The research leading to these results has received funding from the German Research Foundation via CRC 787 and from the European Research Council under the European Union's Seventh Framework ERC Grant Agreement No. 615613. We gratefully acknowledge technical support by qutools GmbH.",

year = "2016",

month = jun,

doi = "10.1088/1367-2630/18/6/063011",

language = "English",

volume = "18",

journal = "New Journal of Physics",

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TY - JOUR

T1 - Mode-Switching induced super-thermal bunching in quantum-dot microlasers

AU - Redlich, Christoph

AU - Lingnau, Benjamin

AU - Holzinger, Steffen

AU - Schlottmann, Elisabeth

AU - Kreinberg, Soren

AU - Schneider, Christian

AU - Kamp, Martin

AU - Höfling, Sven

AU - Wolters, Janik

AU - Reitzenstein, Stephan

AU - Ludge, Kathy

N1 - The research leading to these results has received funding from the German Research Foundation via CRC 787 and from the European Research Council under the European Union's Seventh Framework ERC Grant Agreement No. 615613. We gratefully acknowledge technical support by qutools GmbH.

PY - 2016/6

Y1 - 2016/6

N2 - The super-thermal photon bunching in quantum-dot micropillar lasers is investigated both experimentally and theoretically via simulations driven by dynamic considerations. Using stochastic multi-mode rate equations we obtain very good agreement between experiment and theory in terms of intensity profiles and intensity-correlation properties of the examined quantum-dot micro-laser’s emission. Further investigations of the time-dependent emission show that super-thermal photon bunching occurs due to irregular mode-switching events in the bimodal lasers. Our bifurcation analysis reveals that these switchings find their origin in an underlying bistability, such that spontaneous emission noise is able to effectively perturb the two competing modes in a small parameter region. We thus ascribe the observed high photon correlation to dynamical multistabilities rather than quantum mechanical correlations.

AB - The super-thermal photon bunching in quantum-dot micropillar lasers is investigated both experimentally and theoretically via simulations driven by dynamic considerations. Using stochastic multi-mode rate equations we obtain very good agreement between experiment and theory in terms of intensity profiles and intensity-correlation properties of the examined quantum-dot micro-laser’s emission. Further investigations of the time-dependent emission show that super-thermal photon bunching occurs due to irregular mode-switching events in the bimodal lasers. Our bifurcation analysis reveals that these switchings find their origin in an underlying bistability, such that spontaneous emission noise is able to effectively perturb the two competing modes in a small parameter region. We thus ascribe the observed high photon correlation to dynamical multistabilities rather than quantum mechanical correlations.

KW - Nonlinear dynamics

KW - Microlaser

KW - Correlation properties

KW - Photon statistics

KW - Noise and multimode dynamics

KW - Quantum dot laser

U2 - 10.1088/1367-2630/18/6/063011

DO - 10.1088/1367-2630/18/6/063011

M3 - Article

SN - 1367-2630

VL - 18

JO - New Journal of Physics

JF - New Journal of Physics

M1 - 063011

ER -

Mode-Switching induced super-thermal bunching in quantum-dot microlasers

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