Locking of three coupled lasers

H Erzgraber, Sebastian Wieczorek, B Krauskopf

Research output: Working paper

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We investigate the stability of an array of three laterally coupled semiconductor lasers. This study of the simplest system with an underlying structure that is also found in larger arrays constitutes a first step towards understanding the stability properties of large arrays. We use a composite-cavity model, where the individual lasers are described by the transverse modes of the entire composite-cavity system. Specifically, we analyze the stable locking region, where the laser array exhibits continuous wave emission for different detunings and coupling strengths between the individual lasers. We find that the optical fields in the outer lasers are out of phase with the middle laser.
Original languageEnglish
Publication statusPublished - Jan 2010

Bibliographical note

Sponsorship: This research was supported by Great Western Research Fellowship 18 'Modelling and nonlinear dynamics of optical nanodevices: nanolasers and photonic nanocircuits.'


  • dynamics and bifurcations
  • coupled lasers
  • composite-cavity model
  • numerical continuation


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  • Locking of three coupled lasers

    Erzgraber, H., Wieczorek, S. & Krauskopf, B., Jan 2010, SPIE.

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

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