title: 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.
authors.affiliation: Faculté des Sciences 123, avenue A. Thomas, Université de Limoges, Centre National de la Recherche Scientifique, XLIM Institut de Recherche, 87060 Limoges, France.
authors.forename: J
authors.initials: J
authors.lastname: Lhermite
authors.forename: E
authors.initials: E
authors.lastname: Suran
authors.forename: V
authors.initials: V
authors.lastname: Kermene
authors.forename: F
authors.initials: F
authors.lastname: Louradour
authors.forename: A
authors.initials: A
authors.lastname: Desfarges-Berthelemot
authors.forename: A
authors.initials: A
authors.lastname: Barthélémy