A Large-Area Liquid-Crystal Spatial Light Modulator for Amplitude Modulation of High-Power Infrared Laser Beams
High-power lasers require spatial beam shaping to operate the system at optimal performance. Amplitude modulation is crucial to compensate spatial inhomogeneities and to mask parts of the beam to stop the damage growth in the powers sections. The localization of spatial light modulators (SLMs), typically at the front-end level, is related to their ability to sustain high fluence over large areas. In most liquid-crystal (LC) SLMs, the modulation mechanism relies on a patterned external electric field. In optically-addressed LC-SLMs, this field is induced by a transparent electrode and an illuminated photoconductive crystal (BSO). This multilayer structure presents limited aperture (≃cm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>) and low damage threshold (0.1 J/cm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>).
Authors
- Aurélie Jullien (ORCID: https://orcid.org/0000-0002-7776-8312)
- Cyrille Claudet (ORCID: https://orcid.org/0000-0002-7733-8283)
- Natan Monvoisin
- Guilhem Rouzaud
- S. Montant (ORCID: https://orcid.org/0000-0001-6324-3147)
- Nicolas Forget (ORCID: https://orcid.org/0000-0001-5366-9777)
- Laurent Lamaignère (ORCID: https://orcid.org/0000-0002-2810-5854)
- G. Chériaux
- Oihana Mesplede
Institutions
- CEA CESTA (FR)
- Centre National de la Recherche Scientifique (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Institut de Physique de Nice (FR)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11110957
- Primary Topic
- Laser-Matter Interactions and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00