Time-resolved spectra of a self-pulsing quantum dot laser

A. Tierno, N. Radwell, T. Ackemann, K Panajotov (Editor), M Sciamanna (Editor), AA Valle (Editor), R Michalzik (Editor)

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)
225 Downloads (Pure)


Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the Littrow configuration is applied. The frequency resolved optical spectra reveal different envelope shifts between the two cases. This might be related to a change of phase-amplitude coupling across the gain maximum in agreement with the expectation for a two level system. The time scale and bifurcation scenario suggest that these are opto-thermal pulsation like those reported in quantum well amplifiers.(1)
Original languageEnglish
Title of host publicationSemiconductor Lasers and Laser Dynamics IV
Publication statusPublished - 2010
EventConference on Semiconductor Lasers and Laser Dynamics IV - Brussels, Belgium
Duration: 12 Apr 201016 Apr 2010

Publication series

NameProc. SPIE


ConferenceConference on Semiconductor Lasers and Laser Dynamics IV


  • quantum dot laser
  • self-pulsing
  • linewidth enhancement factor
  • cavity
  • dynamics
  • amplifiers
  • oscillations
  • filamentation
  • mode-competition
  • semiconductor-lasers


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