Delay induced excitability in VCSELs

Tomasz Piwonski; John Houlihan; Thomas Busch; Guillaume Huyet

doi:10.1117/12.606700

3 June 2005 Delay induced excitability in VCSELs

Tomasz Piwonski, John Houlihan, Thomas Busch, Guillaume Huyet

Proceedings Volume 5825, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks; (2005) https://doi.org/10.1117/12.606700
Event: OPTO-Ireland, 2005, Dublin, Ireland

Abstract

We analyse the stochastic polarization fluctuations in a vertical cavity surface emitting laser (VCSEL) under the influence of electro-optical feedback and show that the dynamics can be modeled as a bistable system with time-delayed memory. Assuming an asymmetric potential, we show the existence of a regime in which the systems dynamic displays excitability. We calculate the relevant residence time distributions and correlation times and compare our system to a well known discrete model for excitability. Finally, we present experimental data that demonstrates excitable behaviour in the polarization dynamics of a VCSEL and, in particular, show the appearance of coherence resonance.

Citation Download Citation

Tomasz Piwonski, John Houlihan, Thomas Busch, and Guillaume Huyet "Delay induced excitability in VCSELs", Proc. SPIE 5825, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks, (3 June 2005); https://doi.org/10.1117/12.606700

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