High-speed wavefront reconstruction of a Gaussian beam propagating through controlled optical turbulence

Eduardo Peters, Marco Sepúlveda, Pablo Scherz, Aarón Cofré, Jorge Tapia, Bastián Romero, Darío G. Pérez

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Any beam that propagates through optical turbulence will experience distortions in both its amplitude and phase, leading to various effects such as beam wandering, beam spreading, and irradiance fluctuations. Reconstructing the complete field of a perturbed beam is a challenging task due to the dynamic nature of these effects. Interferometric wavefront reconstruction techniques—such as those based on holography—are commonly used but are hindered by their sensitivity to environmental disturbances and alignment errors. However, new complex phase retrieval methods based on propagation equations have emerged, which do not require prior knowledge of the beam to be reconstructed and are suitable for amplitude or phase objects, or both. We propose an experimental implementation of a complex phase retrieval technique for characterizing Gaussian beams propagating through optical turbulence, using binary amplitude modulation with a digital micro-mirror device (DMD). This approach is ideal for dynamic applications and has enabled us to achieve experimental high-speed complex wavefront reconstruction of optical beams through controlled real turbulence. This experiment corresponds to the initial step in our research focused on gaining a deeper understanding of optical turbulence from an experimental perspective.

Idioma originalInglés
Título de la publicación alojadaLaser Communication and Propagation through the Atmosphere and Oceans XII
EditoresJaime A. Anguita, Jeremy P. Bos, David T. Wayne
EditorialSPIE
ISBN (versión digital)9781510665965
DOI
EstadoPublicada - 2023
EventoLaser Communication and Propagation through the Atmosphere and Oceans XII 2023 - San Diego, Estados Unidos
Duración: 22 ago. 202323 ago. 2023

Serie de la publicación

NombreProceedings of SPIE - The International Society for Optical Engineering
Volumen12691
ISSN (versión impresa)0277-786X
ISSN (versión digital)1996-756X

Conferencia

ConferenciaLaser Communication and Propagation through the Atmosphere and Oceans XII 2023
País/TerritorioEstados Unidos
CiudadSan Diego
Período22/08/2323/08/23

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