According to one aspect, the invention relates to a device (200) for transporting and controlling light beams comprising a light guide (40) comprising a bundle (50) of uncoupled single-mode optical fibres (Fi), each single-mode optical fibre (Fi) being intended to receive an elementary light beam (B1i) at a near end and to emit a light beam (B2i) at a far end, said bundle of single-mode optical fibres having, in operation, a minimum radius of curvature corresponding to a maximum curvature of the bundle of fibres. The device (200) furthermore comprises an optical device for controlling phase, said device being arranged on the side of the near end of the light guide (40) and comprising at least one first spatial light modulator (30) suitable for applying a phase shift to each of the elementary beams (B1i) and a unit (60) for controlling the first spatial light modulator, which unit is configured to apply a phase shift to each of the elementary beams (B1i) in order to form, at the far end of the light guide, an illuminating beam with a preset phase function. According to the present description, said bundle (50) of single-mode optical fibres is twisted, and has a twist period (P) set to preserve said phase function at the far end of the light guide when the bundle of single-mode optical fibres is given a curvature lower than said maximum curvature.Selon un aspect, l'invention concerne un dispositif (200) de transport et de contrôle de faisceaux lumineux comprenant un guide de lumière (40) comprenant un paquet (50) de fibres optiques monomodes (Fi) non couplées, chaque fibre optique monomode (Fi) étant destinée à recevoir un faisceau lumineux élémentaire (B1i) à une extrémité proximale et à émettre un faisceau lumineux (B2i) à une extrémité distale, ledit paquet de fibres optiques monomodes comprenant, en opération, un rayon de courbure minimal correspondant à une courbure maximale du paquet de fibres. Le dispositif (200) comprend en outre un dispositif optique de contr
