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1/ f noise in the intensity fluctuations of vertical-cavity surface-emitting lasers subject to parallel optical injection

Abstract: A first analysis of fluctuations of the light intensity of vertical-cavity surface-emitting lasers operating in a bistable regime reveals the presence of 1/f noise. In this regime the intensity fluctuates between two recently characterized states with residence times {?1} and {?2}. We identify three distinct processes. One of them presents a coherence enhancement phenomenon, and in the other two the distribution of residence times in one of the states follows either a power law P(?1)??1-2 or P(?2)??2-2, and this is the cause of the 1/f shape in the spectral density of the intensity. The process at the coherence enhancement zone shows 1/f fluctuations in the light intensity and also in the time residence process. It is shown that the origin of these fluctuations is due to a power-law distribution in the time separation between pulses observed in the time residence series.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Phys. Rev. E, Vol. 97, Num. 04, Pag. 042105 (2018)

Editorial: American Physical Society

 Fecha de publicación: 06/04/2018

Nº de páginas: 10

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevE.97.042105

ISSN: 1539-3755,1550-2376,2470-0045,2470-0053

Proyecto español: TEC2015-65212-C3-1-P ; FIS2016-74957-P

Url de la publicación: https://doi.org/10.1103/PhysRevE.97.042105