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Radziunas, Mindaugas [Author]; Vladimirov, Andrei G. [Author]; Viktorov, Evgeny A. [Author]; Fiol, Gerrit [Author]; Schmeckebier, Holger [Author]; Bimberg, Dieter [Author]

Broadening of mode-locking pulses in quantum-dot semiconductor lasers: Simulation, analysis and experiments

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  • Media type: Text; E-Book; Report
  • Title: Broadening of mode-locking pulses in quantum-dot semiconductor lasers: Simulation, analysis and experiments
  • Contributor: Radziunas, Mindaugas [Author]; Vladimirov, Andrei G. [Author]; Viktorov, Evgeny A. [Author]; Fiol, Gerrit [Author]; Schmeckebier, Holger [Author]; Bimberg, Dieter [Author]
  • imprint: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2010
  • Language: English
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.1584
  • Keywords: 85.30.De ; article ; 42.60.Fc ; 85.35.Be ; 35B30 ; 78A60 ; 42.55.Px ; 35Q60 ; 73.63.Kv ; mode-locking -- semiconductor laser -- quantum dots -- saturable absorber -- pulse broadening -- trailing edge
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  • Description: We consider a mode-locked quantum-dot edge-emitting semiconductor laser consisting of a reverse biased saturable absorber and a forward biased amplifying section. To describe the dynamics of this laser we use the traveling wave model taking into account carrier exchange processes between a reservoir and the quantum dots. A comprehensive parameter study is presented and an analysis of mode-locking pulse broadening with an increase of injection current is performed. The results of our theoretical analysis are supported by experimental data demonstrating a strong pulse asymmetry in a monolithic two section quantum dot mode-locked laser.