Controlled Generation of Orbital Angular Momentum Beams With Coherent Beam Combining Digital Laser and Liquid-Crystal q-Plate

We report on versatile orbital angular momentum beam generation through the association of a 61-channels coherent beam combining digital laser and a liquid-crystal q-plate. Particularly, high-order vortex beams that carry orbital angular momentum are generated with radial, azimuthal and/or circular polarization states. The q-plate is designed and manufactured to sustain high average power ensuring that the vortex spatial mode is preserved. The proposed system offers an extra degree of freedom for various applications requesting beam shaping with specific polarization state.

Keywords

Laser beams Optical fiber amplifiers Optical vortices Optical polarization Absorption Optical fiber polarization Power lasers

Domains

Optics [physics.optics]

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Controlled_Generation_of_Orbital_Angular_Momentum_Beams_With_Coherent_Beam_Combining_Digital_Laser_and_Liquid-Crystal_q-Plate.pdf (2.52 Mo)

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https://hal.science/hal-04740612

Submitted on : Tuesday, November 12, 2024-4:34:48 PM

Last modification on : Tuesday, November 12, 2024-4:39:48 PM

Dates and versions

hal-04740612 , version 1 (12-11-2024)

Identifiers

HAL Id : hal-04740612 , version 1
DOI : 10.1109/JPHOT.2024.3421244

Cite

Corentin Lechevalier, Claude-Alban Ranély-Vergé-Dépré, Ihsan Fsaifes, Rezki Becheker, Gerben Boer, et al.. Controlled Generation of Orbital Angular Momentum Beams With Coherent Beam Combining Digital Laser and Liquid-Crystal q-Plate. IEEE Photonics Journal, 2024, 16 (4), pp.1502305. ⟨10.1109/JPHOT.2024.3421244⟩. ⟨hal-04740612⟩

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