Beyond the relaxation frequency limit in square-wave dynamics

Chi-Hak Uy; Lionel Weicker; Damien Rontani; Marc Sciamanna

doi:10.1117/12.2307175

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9 May 2018 Beyond the relaxation frequency limit in square-wave dynamics

Chi-Hak Uy, Lionel Weicker, Damien Rontani, Marc Sciamanna

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Proceedings Volume 10682, Semiconductor Lasers and Laser Dynamics VIII; 1068210 (2018) https://doi.org/10.1117/12.2307175
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

We report on a bifurcation scenario from which emerges oscillations at a frequency higher than the relaxationoscillation frequency in an edge-emitting laser diode subjected to polarized optical feedback; these oscillations appear in the square-wave regime. The study has been performed experimentally and numerically based on Lang-Kobayashi model. We unveil bifurcation diagrams showing a clear bifurcation point that marks the transition between sustained and damped oscillations on the plateaus of square-waves. We extend this first bifurcation study by providing additional analytical insight to characterize the main parametric dependence of the frequency of these undamped oscillations.

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Chi-Hak Uy, Lionel Weicker, Damien Rontani, and Marc Sciamanna "Beyond the relaxation frequency limit in square-wave dynamics", Proc. SPIE 10682, Semiconductor Lasers and Laser Dynamics VIII, 1068210 (9 May 2018); https://doi.org/10.1117/12.2307175

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