Dynamics of semiconductor lasers with filtered optical feedback

B. Krauskopf, H. Erzgräber, D. Lenstra

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)


In the filtered optical feedback (FOF) scheme a part of the emission of the laser is spectrally filtered, for example by a Fabry-Pérot filter, and than fed back into the laser. If a semiconductor laser is subject to such delayed FOF qualitative different types of oscillations are possible: the well known relaxation oscillations and, more remarkably, frequency oscillations. We explain how the continuous wave operation of the FOF laser - the external filtered modes - lose their stability and the different types of oscillations arise due to the presence of the filter. This study is restricted to the case of a narrow filter. This means that there are only a few external filtered modes within the width of the filter, so that the influence of the feedback phase can be studied explicitly.

Original languageEnglish
Title of host publicationSemiconductor Lasers and Laser Dynamics II
Number of pages11
Publication statusPublished - 9 Aug 2006
EventSemiconductor Lasers and Laser Dynamics II - Strasbourg, France
Duration: 3 Apr 20066 Apr 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceSemiconductor Lasers and Laser Dynamics II


  • Bifurcation analysis
  • Delay
  • External filtered modes
  • Filtered optical feedback
  • Numerical continuation


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