Moscow University Physics Bulletin

, Volume 65, Issue 3, pp 180–183 | Cite as

Numerical investigation of optical heartbeats with external driving forces

  • O. O. Brovko
  • D. Valenti
  • S. I. Lebedenko
  • B. Spagnolo
  • A. Yu. Chikishev


The role of harmonic and random external forces in a phenomenological nonlinear model of optical heartbeats is investigated. External forces trigger damped oscillations at the natural frequency of the system and higher harmonics. The numerical results are compared with experimental ones.


External Force Power Spectral Density Thermal Lens Beam Waist Random Force 
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Copyright information

© Allerton Press, Inc. 2010

Authors and Affiliations

  • O. O. Brovko
    • 1
  • D. Valenti
    • 2
  • S. I. Lebedenko
    • 1
  • B. Spagnolo
    • 2
  • A. Yu. Chikishev
    • 1
  1. 1.Physics Department and International Laser CenterMoscow State UniversityMoscowRussia
  2. 2.Dipartimento di Fisica e Tecnologie Relative, Group of Interdisciplinary PhysicsUniversitá di Palermo and CNISM-INFMPalermoItaly

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