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Article Dans Une Revue Journal de Physique III Année : 1993

Generation of coherent wavefronts and images inside laser resonators

Résumé

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.

Dates et versions

hal-01278189 , version 1 (23-02-2016)

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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, 1993, 3, ⟨10.1051/jp3:1993205⟩. ⟨hal-01278189⟩

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