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Feedback-induced steady-state light bunching above the lasing threshold

Franz Schulze, Benjamin Lingnau, Sven Moritz Hein, Alexander Carmele, Eckehard Schöll, Kathy Lüdge, and Andreas Knorr
Phys. Rev. A 89, 041801(R) – Published 10 April 2014
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Abstract

We develop a full quantum-optical approach for optical self-feedback of a microcavity laser. These miniaturized devices work in a regime between the quantum and classical limit and are test beds for the differences between a quantized theory of optical self-feedback and the corresponding semiclassical theory. The light intensity and photon statistics are investigated with and without an external feedback: We show that in the low-gain limit, where relaxation oscillations do not appear, the recently observed photon bunching in a quantum-dot microcavity laser with optical feedback can be accounted for only by the fully quantized model. By providing a description of laser devices with feedback in the quantum limit, we reveal insights into the origin of bunching in quantized and semiclassical models.

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  • Received 2 September 2013

DOI:https://doi.org/10.1103/PhysRevA.89.041801

©2014 American Physical Society

Authors & Affiliations

Franz Schulze1,*, Benjamin Lingnau2, Sven Moritz Hein1, Alexander Carmele1, Eckehard Schöll2, Kathy Lüdge2, and Andreas Knorr1

  • 1Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
  • 2Institut für Theoretische Physik, Nichtlineare Dynamik und Kontrolle, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany

  • *schulze@itp.tu-berlin.de

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Issue

Vol. 89, Iss. 4 — April 2014

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