Generation of coherent wavefronts and images inside laser resonators

Abstract : We describe a new type of laser mode filtering using two complementary spatial filters located against the plane mirrors of a confocal lens resonator. With Nd/YAG as amplifying medium, we report the synthesis of two particular waves: a sinusoidally modulated wavefront, and a uniphase beam with a flat spatial profile and minimal divergence. The temporal evolution of the beam under construction is also recorded. The process is a new type of wavefront reconstruction, like holography, but without reference.
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Journal de Physique III, EDP Sciences, 1993, 3, 〈10.1051/jp3:1993205〉
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https://hal-unilim.archives-ouvertes.fr/hal-01278189
Contributeur : Vincent Kermène <>
Soumis le : mardi 23 février 2016 - 17:30:05
Dernière modification le : jeudi 11 janvier 2018 - 06:17:28

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Michel Vampouille, Bernard Colombeau, Vincent Kermène, P. Martin, Claude Froehly. Generation of coherent wavefronts and images inside laser resonators. Journal de Physique III, EDP Sciences, 1993, 3, 〈10.1051/jp3:1993205〉. 〈hal-01278189〉

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