skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ground-state modulation-enhancement by two-state lasing in quantum-dot laser devices

Abstract

We predict a significant increase of the 3 dB-cutoff-frequency on the ground-state lasing wavelength for two-state-lasing quantum-dot lasers using a microscopically motivated multi-level rate-equation model. After the onset of the second lasing line, the excited state acts as a high-pass filter, improving the ground-state response to faster modulation frequencies. We present both numerically simulated small-signal and large-signal modulation results and compare the performance of single and two-state lasing devices. Furthermore, we give dynamical arguments for the advantages of two-state lasing on data-transmission capabilities.

Authors:
;  [1];  [2]
  1. Institut für Theoretische Physik, Technische Universität Berlin, 10623 Berlin (Germany)
  2. Fachbereich Physik, Freie Universität Berlin, 14195 Berlin (Germany)
Publication Date:
OSTI Identifier:
22399030
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; COMPARATIVE EVALUATIONS; DATA TRANSMISSION; EXCITED STATES; FILTERS; GROUND STATES; LASERS; MODULATION; PERFORMANCE; QUANTUM DOTS; REACTION KINETICS; WAVELENGTHS

Citation Formats

Röhm, André, Lingnau, Benjamin, and Lüdge, Kathy. Ground-state modulation-enhancement by two-state lasing in quantum-dot laser devices. United States: N. p., 2015. Web. doi:10.1063/1.4921173.
Röhm, André, Lingnau, Benjamin, & Lüdge, Kathy. Ground-state modulation-enhancement by two-state lasing in quantum-dot laser devices. United States. doi:10.1063/1.4921173.
Röhm, André, Lingnau, Benjamin, and Lüdge, Kathy. Mon . "Ground-state modulation-enhancement by two-state lasing in quantum-dot laser devices". United States. doi:10.1063/1.4921173.
@article{osti_22399030,
title = {Ground-state modulation-enhancement by two-state lasing in quantum-dot laser devices},
author = {Röhm, André and Lingnau, Benjamin and Lüdge, Kathy},
abstractNote = {We predict a significant increase of the 3 dB-cutoff-frequency on the ground-state lasing wavelength for two-state-lasing quantum-dot lasers using a microscopically motivated multi-level rate-equation model. After the onset of the second lasing line, the excited state acts as a high-pass filter, improving the ground-state response to faster modulation frequencies. We present both numerically simulated small-signal and large-signal modulation results and compare the performance of single and two-state lasing devices. Furthermore, we give dynamical arguments for the advantages of two-state lasing on data-transmission capabilities.},
doi = {10.1063/1.4921173},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 19,
volume = 106,
place = {United States},
year = {2015},
month = {5}
}