Coherent combination of four laser beams in a multi-axis Fourier cavity using a diffractive optical element

Abstract : Thermal aberrations in diode-pumped solid-state laser media are well known. To avoid these effects we propose to end-pump separated zones of a laser crystal with elementary beams of moderate power. We present a multi-axis laser cavity with a single-gain medium longitudinally pumped by four fibre-coupled laser diodes. The four elementary laser beams are coherently combined inside the cavity by a diffractive optical element. 82% of the laser power is focused in a single diffraction limited beam.
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Article dans une revue
Journal of Optics A: Pure and Applied Optics, IOP Publishing, 2001, 3
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Contributeur : Vincent Kermène <>
Soumis le : mardi 23 février 2016 - 15:17:43
Dernière modification le : jeudi 11 janvier 2018 - 06:17:28

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  • HAL Id : hal-01278021, version 1

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Marc Tondusson, Claude Froehly, Vincent Kermène, Michel Vampouille. Coherent combination of four laser beams in a multi-axis Fourier cavity using a diffractive optical element. Journal of Optics A: Pure and Applied Optics, IOP Publishing, 2001, 3. 〈hal-01278021〉

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