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New multi-mode delay differential equation model for lasers with optical feedback

  • Mindaugas Radziunas
Article
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Part of the following topical collections:
  1. Numerical Simulation of Optoelectronic Devices 2016

Abstract

In this paper, we discuss the relations between the spatially-distributed traveling wave, Lang–Kobayashi, and a new multi-mode delay differential equation models for Fabry–Perot type semiconductor diode lasers with an external optical feedback. All these models govern the dynamics of the slowly varying complex amplitudes of the optical fields and carrier density. To compare the models, we calculate the cavity modes determined by the threshold carrier density and optical frequency of the steady states in all three models. These calculations show that the Lang–Kobayashi type model is in good agreement with the traveling wave model only in the small feedback from the external cavity regimes, whereas newly derived multi-mode delay differential equation model remains correct even at moderate and large optical feedback regimes.

Keywords

Lasers External cavity Optical feedback Cavity mode Modeling Traveling wave Lang Kobayashi Multi-mode Delay differential equations 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Weierstrass InstituteBerlinGermany

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