Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link
One of technical challenges in laser inter-satellite link (ISL) is the mitigation of performance degradation caused by pointing errors and angle-of-arrival (AoA) fluctuations arising unavoidably from satellite movements and vibrations. In this paper, we propose the dynamic adaptive beam control (ABC...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9798810/ |
| _version_ | 1818549495928979456 |
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| author | Kwanyong Lee Vuong Mai Hoon Kim |
| author_facet | Kwanyong Lee Vuong Mai Hoon Kim |
| author_sort | Kwanyong Lee |
| collection | DOAJ |
| description | One of technical challenges in laser inter-satellite link (ISL) is the mitigation of performance degradation caused by pointing errors and angle-of-arrival (AoA) fluctuations arising unavoidably from satellite movements and vibrations. In this paper, we propose the dynamic adaptive beam control (ABC) technique implementable by using variable focus lenses (VFLs) at both the transmitter and receiver. In this technique, we monitor the instantaneous pointing error and AoA fluctuation induced by satellite vibrations and then provide feedback corrections to the VFL-based ABC system. The VFLs at the transmitter and receiver adjust their focal lengths adaptively to the amount of pointing error and AoA fluctuation, respectively, to minimize the link loss. VFLs operated by electro-wetting or electromagnetic actuator are fast enough to respond to the vibrations. We design the proposed dynamic ABC system for laser ISL by using the double-lens configuration and VFLs. An exemplary system design is presented when commercially available VFLs are utilized. Our simulation study shows that the proposed dynamic ABC technique offers improved transmission performance, compared to the static and the dynamic ABC technique applied to either the transmitter or receiver. |
| first_indexed | 2024-12-12T08:34:06Z |
| format | Article |
| id | doaj.art-87c645b74bdf492ebf742c63cfa8c3d8 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-12T08:34:06Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-87c645b74bdf492ebf742c63cfa8c3d82022-12-22T00:31:00ZengIEEEIEEE Photonics Journal1943-06552022-01-011441810.1109/JPHOT.2022.31839999798810Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite LinkKwanyong Lee0https://orcid.org/0000-0002-7448-5544Vuong Mai1https://orcid.org/0000-0002-3309-0239Hoon Kim2https://orcid.org/0000-0001-7395-3695School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Daedeok Innopolis, KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Daedeok Innopolis, KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Daedeok Innopolis, KoreaOne of technical challenges in laser inter-satellite link (ISL) is the mitigation of performance degradation caused by pointing errors and angle-of-arrival (AoA) fluctuations arising unavoidably from satellite movements and vibrations. In this paper, we propose the dynamic adaptive beam control (ABC) technique implementable by using variable focus lenses (VFLs) at both the transmitter and receiver. In this technique, we monitor the instantaneous pointing error and AoA fluctuation induced by satellite vibrations and then provide feedback corrections to the VFL-based ABC system. The VFLs at the transmitter and receiver adjust their focal lengths adaptively to the amount of pointing error and AoA fluctuation, respectively, to minimize the link loss. VFLs operated by electro-wetting or electromagnetic actuator are fast enough to respond to the vibrations. We design the proposed dynamic ABC system for laser ISL by using the double-lens configuration and VFLs. An exemplary system design is presented when commercially available VFLs are utilized. Our simulation study shows that the proposed dynamic ABC technique offers improved transmission performance, compared to the static and the dynamic ABC technique applied to either the transmitter or receiver.https://ieeexplore.ieee.org/document/9798810/Adaptive beam controlfree space optical communicationsinter-satellite communications |
| spellingShingle | Kwanyong Lee Vuong Mai Hoon Kim Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link IEEE Photonics Journal Adaptive beam control free space optical communications inter-satellite communications |
| title | Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link |
| title_full | Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link |
| title_fullStr | Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link |
| title_full_unstemmed | Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link |
| title_short | Dynamic Adaptive Beam Control System Using Variable Focus Lenses for Laser Inter-Satellite Link |
| title_sort | dynamic adaptive beam control system using variable focus lenses for laser inter satellite link |
| topic | Adaptive beam control free space optical communications inter-satellite communications |
| url | https://ieeexplore.ieee.org/document/9798810/ |
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