Correlation properties and drift phenomena in the dynamics of vertical-cavity surface-emitting lasers with optical feedback

M. Sondermann, T. Ackemann

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18 Citations (Scopus)


We investigate experimentally the polarization dynamics of vertical-cavity surface-emitting lasers with isotropic optical feedback operating in the long-cavity regime. By means of an analysis of the correlation properties in the time domain and in the frequency domain a connection between a drift phenomenon and frequency components that deviate from the harmonics of the external cavity round-trip frequency is revealed. The latter frequency components are shown to result from an interaction of external cavity dynamics and relaxation oscillations. An analogy to the carrier-envelope effect in mode-locked lasers is drawn. Similar drift phenomena are observed also for other laser systems with delay.
Original languageEnglish
Pages (from-to)2707-2715
Number of pages8
JournalOptics Express
Issue number7
Publication statusPublished - 4 Apr 2005


  • lasers
  • laser optics
  • diode lasers
  • mode-locked lasers
  • semiconductor lasers
  • instabilities and chaos

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