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Article Dans Une Revue Journal of Optics A: Pure and Applied Optics Année : 2001

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

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Résumé

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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Dates et versions

hal-01278021 , version 1 (23-02-2016)

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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, 2001, 3. ⟨hal-01278021⟩

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