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Coherent combining of 49 laser beams from a multiple core optical fiber by a spatial light modulator

Abstract : We report co-phasing of 49 beams from a multicore fiber based on a spatial light modulator using a simple feedback loop control. A specific fiber of 7x7 Germanium doped cores was fabricated. The power carried by the far field main lobe of the phased array, in the continuous wave regime, amounts to 96% of its theoretical value. Femtoseconde pulses were also phase-locked with the same device configuration.
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https://hal.archives-ouvertes.fr/hal-00567530
Contributor : Sandrine Coudert <>
Submitted on : Monday, February 21, 2011 - 2:14:10 PM
Last modification on : Tuesday, October 6, 2020 - 4:30:48 PM

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Jérôme Lhermite, Eric Suran, Vincent Kermène, Frédéric Louradour, Agnès Desfarges-Berthelemot, et al.. Coherent combining of 49 laser beams from a multiple core optical fiber by a spatial light modulator. Optics Express, Optical Society of America - OSA Publishing, 2010, 18 (5), pp.4783-4789. ⟨10.1364/OE.18.004783⟩. ⟨hal-00567530⟩

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