Dynamics of semiconductor lasers with filtered optical feedback

B Krauskopf, H Erzgraber, D Lenstra

Research output: Working paper

309 Downloads (Pure)


In the filtered optical feedback (FOF) scheme a part of the emission of the laser is spectrally filtered, for example by a Fabry-P´erot 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
Publication statusAccepted/In press - Mar 2006

Bibliographical note

Additional information: Preprint of a paper to be presented at Photonics Europe 2006, 3-7 April 2006, Strasbourg, France. Conference organised by SPIE Europe.

Terms of use: Copyright 2006 Society of Photo-Optical Instrumentation Engineers. This paper will be published in Photonics Europe 2006: Semiconductor Lasers and Laser Dynamics II (Vol. 6184 Printed proceedings of SPIE) and is made available as an electronic reprint (preprint) with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


  • bifurcation analysis
  • external filtered modes
  • filtered optical feedback
  • delay
  • numerical continuation


Dive into the research topics of 'Dynamics of semiconductor lasers with filtered optical feedback'. Together they form a unique fingerprint.
  • Dynamics of semiconductor lasers with filtered optical feedback

    Krauskopf, B., Erzgräber, H. & Lenstra, D., Apr 2006, SPIE 2006. Vol. 6184.

    Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

    4 Citations (Scopus)

Cite this