01337nas a2200193 4500008004100000022001400041245005100055210005100106300001600157490000700173520080500180653000700985653000700992100002400999700002001023700002201043700001801065856006001083 2024 eng d a1094-408700aGenerating Airy beams through multimode fibres0 aGenerating Airy beams through multimode fibres a6838–68470 v323 a

Focussing light through a multimode fibre (MMF) is the basis of holographic endoscopes, which currently enable detailed imaging of deep tissue. Achieving high fidelity and purity diffraction-limited foci has been shown to be possible, when fully controlling the amplitude, phase, and two orthogonal polarisation states of the input field. Yet, generating more complex field distributions with similar performance remains to be assessed. Here, we demonstrate the generation of Airy beams through an MMF containing in excess of 90 % of the optical power delivered by the fibre. We discuss two distinct methods for generating optical landscapes: the direct field and the Fourier domain synthesis. Moreover, we showcase the flexibility of the Fourier domain synthesis to modify the generated beam.

10aKF10aMF1 aMichálková, Ivana1 aColombel, Simon1 aGomes, André, D.1 aCizmar, Tomas uhttps://opg.optica.org/oe/abstract.cfm?uri=oe-32-5-6838
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