| DOI | Trouver le DOI : https://doi.org/10.1364/AO.485172 |
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| Auteur | Rechercher : Pashazanoosi, MohamadrezaIdentifiant ORCID : https://orcid.org/0000-0002-9703-8528; Rechercher : Taylor, Michael; Rechercher : Pitts, Oliver1Identifiant ORCID : https://orcid.org/0000-0002-5740-9443; Rechercher : Flueraru, Costel1; Rechercher : Orth, Antony2Identifiant ORCID : https://orcid.org/0000-0001-5937-6254; Rechercher : Hranilovic, SteveIdentifiant ORCID : https://orcid.org/0000-0003-0308-2489 |
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| Affiliation | - Conseil national de recherches Canada. Quantique et nanotechnologies
- Conseil national de recherches Canada. Technologies numériques
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| Bailleur de fonds | Rechercher : National Research Council Canada; Rechercher : Compute Canada |
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| Format | Texte, Article |
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| Résumé | An approach to adaptive optics utilizing a single-pixel camera (SPC) is proposed to maximize fiber coupling efficiency at the receiver side of an optical satellite-to-ground link perturbed by atmospheric turbulence. Using a single-pixel wavefront sensor enables operation at longer optical wavelengths, such as near and far infrared, which have advantageous propagation characteristics for free space optical communication. In this approach, a focal plane intensity image of the atmospheric-disturbed wavefront is taken via an SPC using a compressed sensing technique. An iterative speckle-based phase retrieval algorithm is then applied to infer the phase distortion corrected by a deformable mirror in a feedback loop. This computational approach to inferring the phase of the wavefront overcomes the limitations of traditional Shack–Hartman-based approaches, which are difficult to implement at high speed and at the long infrared wavelengths proposed for future optical satellite communication downlinks. It has been shown that fiber coupling efficiency is increased from less than 5% to 40%–50% in medium-to-strong turbulence scenarios with the phase retrieval algorithm proposed in this work. |
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| Date de publication | 2023-05-02 |
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| Maison d’édition | Optica Publishing Group |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | f778f6cf-88ae-4ff9-9db8-944a0ca5eb43 |
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| Enregistrement créé | 2024-09-09 |
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| Enregistrement modifié | 2025-11-03 |
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