Abstract
We present a new cavity design for controlling the spatial quality of the beam delivered by a fibre laser including a multicore fibre. A quasi Gaussian profile is produced at the 7-core fibre output involving self-imaging effects in the multicore fibre and spatial filtering. Numerical and experimental investigations analyse the spatial and spectral characteristics of the multicore fibre laser.
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Shalaby, B.M., Kermene, V., Pagnoux, D. et al. Quasi-Gaussian beam from a multicore fibre laser by phase locking of supermodes. Appl. Phys. B 97, 599–605 (2009). https://doi.org/10.1007/s00340-009-3575-z
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DOI: https://doi.org/10.1007/s00340-009-3575-z