Experimental Evidence of Coherence Resonance in a Time-Delayed Bistable System

Mikel Arizaleta Arteaga (1, 2) , Miguel Valencia (1) , Marc Sciamanna (3) , Hugo Thienpont (1) , Manuel López-Amo (1) , Krassimir Panajotov (1)

1 TONA - Department of Applied Physics and Photonics [Brussels]
2 Department of Electric and Electronic Engineering
3 LMOPS - Laboratoire Matériaux Optiques, Photonique et Systèmes

We report on the experimental observation of coherence resonance in a bistable system with delay. Our system consists of a vertical-cavity surface-emitting laser subject to time-delayed optical feedback simultaneously from a long and from an extremely short external cavity. Coherence resonance is experimentally proven by analysis of the residence time distribution of the polarization mode-hopping regime and of the signal to noise ratio in the power spectrum.

Keywords: delays; laser cavity resonators; optical bistability; optical feedback; optical noise; surface emitting lasers

Domains: Optics [physics.optics]; Optics / Photonic

Mikel Arizaleta Arteaga, Miguel Valencia, Marc Sciamanna, Hugo Thienpont, Manuel López-Amo, et al.. Experimental Evidence of Coherence Resonance in a Time-Delayed Bistable System. Physical Review Letters, 2007, 99, pp.023903-1-4. ⟨10.1103/PhysRevLett.99.023903⟩. ⟨hal-00207628⟩