| DOI | Resolve DOI: https://doi.org/10.1364/AO.485172 |
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| Author | Search for: Pashazanoosi, MohamadrezaORCID identifier: https://orcid.org/0000-0002-9703-8528; Search for: Taylor, Michael; Search for: Pitts, Oliver1ORCID identifier: https://orcid.org/0000-0002-5740-9443; Search for: Flueraru, Costel1; Search for: Orth, Antony2ORCID identifier: https://orcid.org/0000-0001-5937-6254; Search for: Hranilovic, SteveORCID identifier: https://orcid.org/0000-0003-0308-2489 |
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| Affiliation | - National Research Council Canada. Quantum and Nanotechnologies
- National Research Council Canada. Digital Technologies
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| Funder | Search for: National Research Council Canada; Search for: Compute Canada |
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| Format | Text, Article |
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| Abstract | 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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| Publication date | 2023-05-02 |
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| Publisher | Optica Publishing Group |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | f778f6cf-88ae-4ff9-9db8-944a0ca5eb43 |
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| Record created | 2024-09-09 |
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| Record modified | 2025-11-03 |
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