Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications
Being able to dynamically control the transmitted-beam divergence can bring important advantages in free-space optical communications. Specifically, this technique can help to optimize the overall communications performance when the optimum laser-beam divergence is not fixed or known. This is the ca...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.878488/full |
| _version_ | 1818270362586054656 |
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| author | Alberto Carrasco-Casado Koichi Shiratama Dimitar Kolev Phuc V. Trinh Tetsuharu Fuse Shingo Fuse Koji Kawaguchi Yusuke Hashimoto Masamitsu Hyodo Takashi Sakamoto Terufusa Kunisada Morio Toyoshima |
| author_facet | Alberto Carrasco-Casado Koichi Shiratama Dimitar Kolev Phuc V. Trinh Tetsuharu Fuse Shingo Fuse Koji Kawaguchi Yusuke Hashimoto Masamitsu Hyodo Takashi Sakamoto Terufusa Kunisada Morio Toyoshima |
| author_sort | Alberto Carrasco-Casado |
| collection | DOAJ |
| description | Being able to dynamically control the transmitted-beam divergence can bring important advantages in free-space optical communications. Specifically, this technique can help to optimize the overall communications performance when the optimum laser-beam divergence is not fixed or known. This is the case in most realistic space laser communication systems, since the optimum beam divergence depends on multiple factors that can vary with time, such as the link distance, or cannot be accurately known, such as the actual pointing accuracy. A dynamic beam-divergence control allows to optimize the link performance for every platform, scenario, and condition. NICT is currently working towards the development of a series of versatile lasercom terminals that can fit a variety of conditions, for which the adaptive element of the transmitted beam divergence is a key element. This manuscript presents a prototype of a beam-divergence control system designed and developed by NICT and Tamron to evaluate this technique and to be later integrated within the lasercom terminals. The basic design of the prototype is introduced as well as the first validation tests that demonstrate its performance. |
| first_indexed | 2024-12-12T21:09:05Z |
| format | Article |
| id | doaj.art-c2979a4ccecc4953a2328a18aa1dbd57 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-12T21:09:05Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-c2979a4ccecc4953a2328a18aa1dbd572022-12-22T00:11:56ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-05-011010.3389/fphy.2022.878488878488Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser CommunicationsAlberto Carrasco-Casado0Koichi Shiratama1Dimitar Kolev2Phuc V. Trinh3Tetsuharu Fuse4Shingo Fuse5Koji Kawaguchi6Yusuke Hashimoto7Masamitsu Hyodo8Takashi Sakamoto9Terufusa Kunisada10Morio Toyoshima11National Institute of Information and Communications Technology (NICT), Tokyo, JapanNational Institute of Information and Communications Technology (NICT), Tokyo, JapanNational Institute of Information and Communications Technology (NICT), Tokyo, JapanNational Institute of Information and Communications Technology (NICT), Tokyo, JapanNational Institute of Information and Communications Technology (NICT), Tokyo, JapanTamron Co, Ltd., Saitama, JapanTamron Co, Ltd., Saitama, JapanTamron Co, Ltd., Saitama, JapanTamron Co, Ltd., Saitama, JapanTamron Co, Ltd., Saitama, JapanTamron Co, Ltd., Saitama, JapanNational Institute of Information and Communications Technology (NICT), Tokyo, JapanBeing able to dynamically control the transmitted-beam divergence can bring important advantages in free-space optical communications. Specifically, this technique can help to optimize the overall communications performance when the optimum laser-beam divergence is not fixed or known. This is the case in most realistic space laser communication systems, since the optimum beam divergence depends on multiple factors that can vary with time, such as the link distance, or cannot be accurately known, such as the actual pointing accuracy. A dynamic beam-divergence control allows to optimize the link performance for every platform, scenario, and condition. NICT is currently working towards the development of a series of versatile lasercom terminals that can fit a variety of conditions, for which the adaptive element of the transmitted beam divergence is a key element. This manuscript presents a prototype of a beam-divergence control system designed and developed by NICT and Tamron to evaluate this technique and to be later integrated within the lasercom terminals. The basic design of the prototype is introduced as well as the first validation tests that demonstrate its performance.https://www.frontiersin.org/articles/10.3389/fphy.2022.878488/fullsatellite communicationsoptical communicationsfree-space opticsbeam divergenceoptimization |
| spellingShingle | Alberto Carrasco-Casado Koichi Shiratama Dimitar Kolev Phuc V. Trinh Tetsuharu Fuse Shingo Fuse Koji Kawaguchi Yusuke Hashimoto Masamitsu Hyodo Takashi Sakamoto Terufusa Kunisada Morio Toyoshima Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications Frontiers in Physics satellite communications optical communications free-space optics beam divergence optimization |
| title | Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications |
| title_full | Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications |
| title_fullStr | Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications |
| title_full_unstemmed | Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications |
| title_short | Prototype Development and Validation of a Beam-Divergence Control System for Free-Space Laser Communications |
| title_sort | prototype development and validation of a beam divergence control system for free space laser communications |
| topic | satellite communications optical communications free-space optics beam divergence optimization |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.878488/full |
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