Output Characteristics of Pulsed and Continuous-Wave-Excited Quantum-Dot Microcavity Lasers

Christopher Gies, Jan Wiersig, and Frank Jahnke
Phys. Rev. Lett. 101, 067401 – Published 5 August 2008

Abstract

In the rapidly evolving field of quantum-dot-based microcavity lasers the device characterization is of great importance. In this Letter, we study how information can be obtained from the input/output curve by using a microscopic laser theory for the coupled cavity-quantum-dot system. Semiconductor effects such as a nonlinear source term of spontaneous emission, Pauli blocking, and the absence of complete carrier inversion lead to significant deviations from atomic systems. Especially for pulsed excitation, saturation effects have a tremendous impact on the input/output characteristics and render a simple determination of the spontaneous emission coupling β impossible.

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  • Received 25 January 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.067401

©2008 American Physical Society

Authors & Affiliations

Christopher Gies, Jan Wiersig, and Frank Jahnke

  • Institute for Theoretical Physics, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

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Issue

Vol. 101, Iss. 6 — 8 August 2008

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