We analyze the interaction of two cavity solitons in an optically injected vertical cavity surface emitting laser above threshold. We show that they experience an attractive force even when their distance is much larger than their diameter, and eventually they merge. Since the merging time depends exponentially on the initial distance, we suggest that the attraction could be associated with an exponentially decaying interaction potential, similarly to what is found for hydrophobic materials. We also show that the merging time is simply related to the characteristic times of the laser, photon lifetime, and carrier lifetime.

Exponentially decaying interaction potential of cavity solitons / Anbardan, Shayesteh Rahmani; Rimoldi, Cristina; Kheradmand, Reza; Tissoni, Giovanna; Prati, Franco. - In: PHYSICAL REVIEW. E. - ISSN 2470-0045. - ELETTRONICO. - 97:3(2018), pp. 1-5. [10.1103/PhysRevE.97.032208]

Exponentially decaying interaction potential of cavity solitons

Rimoldi, Cristina;
2018

Abstract

We analyze the interaction of two cavity solitons in an optically injected vertical cavity surface emitting laser above threshold. We show that they experience an attractive force even when their distance is much larger than their diameter, and eventually they merge. Since the merging time depends exponentially on the initial distance, we suggest that the attraction could be associated with an exponentially decaying interaction potential, similarly to what is found for hydrophobic materials. We also show that the merging time is simply related to the characteristic times of the laser, photon lifetime, and carrier lifetime.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2980459