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Proceedings Paper

Interferometric analysis of the spatial coherence of a laser beam propagating in seawater and through the wavy air-water interface
Author(s): Andre Perennou; Jack Cariou; Jean Lotrian
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Paper Abstract

To study the influence of sea-perturbations on an optical wavefront in coherent detection through the air-sea interface, we have used two experimental methods based on interferometric techniques. We use Michelson interferometry and Fourier transform to determine wavefronts deformations after double passage through a wavy air-water interface. We consider the statistical aspect by using the averaged Fourier spectra over many independent realizations. Then, a spatial coherence analysis of light scattering in turbid water is presented: the module of the degree of spatial coherence across the beam section is measured by a Mach-Zehnder interferometer.

Paper Details

Date Published: 26 October 1994
PDF: 11 pages
Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190086
Show Author Affiliations
Andre Perennou, Univ. de Bretagne Occidentale (France)
Jack Cariou, Univ. de Bretagne Occidentale (France)
Jean Lotrian, Univ. de Bretagne Occidentale (France)


Published in SPIE Proceedings Vol. 2258:
Ocean Optics XII

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