Experimental analysis of orbital angular momentum-carrying beams in turbulence

Jaime A. Anguita*, Joaquín Herreros

*Autor correspondiente de este trabajo

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

5 Citas (Scopus)

Resumen

In a laboratory experiment we generate, propagate, and detect laser vortex beams carrying orbital angular momentum (OAM) by means of spatial light modulators (SLMs). We show that beams with OAM states from - 20 to +20 can be effectively generated using different types of phase gratings, and that excellent contrast between adjacent OAM modes is achieved. A weak turbulent air flow is induced on the propagation path to emulate the effects of atmospheric turbulence. By characterizing the effects of optical turbulence on the modal crosstalk among received OAM states we show that it is possible to distinguish them for the purpose of increasing the data throughput of a laser communication link in weak turbulence. It is also demonstrated that by increasing the complexity of the receiver, optical separation of the OAM modes is possible at stronger turbulence conditions.

Idioma originalInglés
Título de la publicación alojadaFree-Space and Atmospheric Laser Communications XI
DOI
EstadoPublicada - 2011
EventoFree-Space and Atmospheric Laser Communications XI - San Diego, CA, Estados Unidos
Duración: 24 ago 201125 ago 2011

Serie de la publicación

NombreProceedings of SPIE - The International Society for Optical Engineering
Volumen8162
ISSN (versión impresa)0277-786X

Conferencia

ConferenciaFree-Space and Atmospheric Laser Communications XI
País/TerritorioEstados Unidos
CiudadSan Diego, CA
Período24/08/1125/08/11

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