Analysis of hybrid mode-locking of two-section quantum dot lasers operating at 1.5 microm

Martijn J R Heck, Edcel J Salumbides, Amandine Renault, Erwin A J M Bente, Yok-Siang Oei, Meint K Smit, René van Veldhoven, Richard Nötzel, Kjeld S E Eikema, Wim Ubachs

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For the first time a detailed study of hybrid mode-locking in two-section InAs/InP quantum dot Fabry-Pérot-type lasers is presented. The output pulses have a typical upchirp of approximately 8 ps/nm, leading to very elongated pulses. The mechanism leading to this typical pulse shape and the phase noise is investigated by detailed radio-frequency and optical spectral studies as well as time-domain studies. The pulse shaping mechanism in these lasers is found to be fundamentally different than the mechanism observed in conventional mode-locked laser diodes, based on quantum well gain or bulk material.

Original languageEnglish
Pages (from-to)18063-18075
Number of pages13
JournalOptics Express
Issue number20
Publication statusPublished - 28 Sept 2009


  • Computer Simulation
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Interferometry/instrumentation
  • Lasers
  • Light
  • Models, Theoretical
  • Quantum Dots
  • Reproducibility of Results
  • Scattering, Radiation
  • Sensitivity and Specificity


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