Optimal Design of Small-Aperture Optical Terminals for Free-Space Links
We present the generalised design of low-complexity, small-aperture optical terminals intended for kilometre-scale, terrestrial, free-space laser links between fixed and dynamic targets. The design features single-mode fibre coupling of the free-space beam, assisted by a fast-steering, tip/tilt mirr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/11/11/1035 |
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| author | Alex Frost Benjamin Dix-Matthews Shane Walsh David Gozzard Sascha Schediwy |
| author_facet | Alex Frost Benjamin Dix-Matthews Shane Walsh David Gozzard Sascha Schediwy |
| author_sort | Alex Frost |
| collection | DOAJ |
| description | We present the generalised design of low-complexity, small-aperture optical terminals intended for kilometre-scale, terrestrial, free-space laser links between fixed and dynamic targets. The design features single-mode fibre coupling of the free-space beam, assisted by a fast-steering, tip/tilt mirror that enables first-order turbulence suppression and fine target tracking. The total power throughput over the free-space link and the scintillation index in fibre are optimised. The optimal tip/tilt correction bandwidth and range, aperture size, and focal length for a given link are derived using analytical atmospheric turbulence modelling and numerical simulations. |
| format | Article |
| id | doaj-art-354d0b0521d24f13a7f78b4ca9ba748b |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-354d0b0521d24f13a7f78b4ca9ba748b2024-11-26T18:18:21ZengMDPI AGPhotonics2304-67322024-11-011111103510.3390/photonics11111035Optimal Design of Small-Aperture Optical Terminals for Free-Space LinksAlex Frost0Benjamin Dix-Matthews1Shane Walsh2David Gozzard3Sascha Schediwy4International Centre for Radio Astronomy Research, The University of Western Australia, Perth 6009, AustraliaInternational Centre for Radio Astronomy Research, The University of Western Australia, Perth 6009, AustraliaInternational Centre for Radio Astronomy Research, The University of Western Australia, Perth 6009, AustraliaInternational Centre for Radio Astronomy Research, The University of Western Australia, Perth 6009, AustraliaInternational Centre for Radio Astronomy Research, The University of Western Australia, Perth 6009, AustraliaWe present the generalised design of low-complexity, small-aperture optical terminals intended for kilometre-scale, terrestrial, free-space laser links between fixed and dynamic targets. The design features single-mode fibre coupling of the free-space beam, assisted by a fast-steering, tip/tilt mirror that enables first-order turbulence suppression and fine target tracking. The total power throughput over the free-space link and the scintillation index in fibre are optimised. The optimal tip/tilt correction bandwidth and range, aperture size, and focal length for a given link are derived using analytical atmospheric turbulence modelling and numerical simulations.https://www.mdpi.com/2304-6732/11/11/1035atmospheric turbulencefree-space opticalsingle-mode fibre |
| spellingShingle | Alex Frost Benjamin Dix-Matthews Shane Walsh David Gozzard Sascha Schediwy Optimal Design of Small-Aperture Optical Terminals for Free-Space Links Photonics atmospheric turbulence free-space optical single-mode fibre |
| title | Optimal Design of Small-Aperture Optical Terminals for Free-Space Links |
| title_full | Optimal Design of Small-Aperture Optical Terminals for Free-Space Links |
| title_fullStr | Optimal Design of Small-Aperture Optical Terminals for Free-Space Links |
| title_full_unstemmed | Optimal Design of Small-Aperture Optical Terminals for Free-Space Links |
| title_short | Optimal Design of Small-Aperture Optical Terminals for Free-Space Links |
| title_sort | optimal design of small aperture optical terminals for free space links |
| topic | atmospheric turbulence free-space optical single-mode fibre |
| url | https://www.mdpi.com/2304-6732/11/11/1035 |
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