Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array
In this paper, we present a method based on the conjugate image principle and micro-nano optics to detect tilt aberrations of a phased fiber laser array system. A co-aperture optics system was adapted to detect the tilt aberrations of a seven-element phased fiber laser array system simultaneously. A...
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MDPI AG
2024-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/1/38 |
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| author | Xin Yu Xingyue Wang Jing Liang Cai Liu Xiaolong Ni Suping Bai Jiasu Li Zeping Liu Lijie Hou |
| author_facet | Xin Yu Xingyue Wang Jing Liang Cai Liu Xiaolong Ni Suping Bai Jiasu Li Zeping Liu Lijie Hou |
| author_sort | Xin Yu |
| collection | DOAJ |
| description | In this paper, we present a method based on the conjugate image principle and micro-nano optics to detect tilt aberrations of a phased fiber laser array system. A co-aperture optics system was adapted to detect the tilt aberrations of a seven-element phased fiber laser array system simultaneously. A Kepler telescope was designed to construct the conjugate relation between the exit pupil of a fiber optic laser array system and a microlens array and also to match the size of the seven beams and the microlens array. The apochromatic theory was used to meet the multispectral (1064 ± 0.3 nm, 1030 ± 0.3 nm, and 633 ± 0.2 nm) detection needs. A far-field detection unit was also designed to evaluate beam quality. When the actual beam was offset by 1 pixel, the beam tilt was about 0.7 µrad. The maximum detection error of the seven-element system was about 7 µrad. It could not only directly detect the beam’s tilt angle but also maintained detection accuracy while reducing the algorithm complexity. |
| format | Article |
| id | doaj-art-d0d4d14b6bb141809bbd4755f309ee99 |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-d0d4d14b6bb141809bbd4755f309ee992025-01-24T13:41:55ZengMDPI AGMicromachines2072-666X2024-12-011613810.3390/mi16010038Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser ArrayXin Yu0Xingyue Wang1Jing Liang2Cai Liu3Xiaolong Ni4Suping Bai5Jiasu Li6Zeping Liu7Lijie Hou8School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaRailway Locomotive and Rolling Stock Faculty, Jilin Railway Technology College, Jilin 132299, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaSchool of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaIn this paper, we present a method based on the conjugate image principle and micro-nano optics to detect tilt aberrations of a phased fiber laser array system. A co-aperture optics system was adapted to detect the tilt aberrations of a seven-element phased fiber laser array system simultaneously. A Kepler telescope was designed to construct the conjugate relation between the exit pupil of a fiber optic laser array system and a microlens array and also to match the size of the seven beams and the microlens array. The apochromatic theory was used to meet the multispectral (1064 ± 0.3 nm, 1030 ± 0.3 nm, and 633 ± 0.2 nm) detection needs. A far-field detection unit was also designed to evaluate beam quality. When the actual beam was offset by 1 pixel, the beam tilt was about 0.7 µrad. The maximum detection error of the seven-element system was about 7 µrad. It could not only directly detect the beam’s tilt angle but also maintained detection accuracy while reducing the algorithm complexity.https://www.mdpi.com/2072-666X/16/1/38laseradaptive opticsaberration detection |
| spellingShingle | Xin Yu Xingyue Wang Jing Liang Cai Liu Xiaolong Ni Suping Bai Jiasu Li Zeping Liu Lijie Hou Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array Micromachines laser adaptive optics aberration detection |
| title | Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array |
| title_full | Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array |
| title_fullStr | Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array |
| title_full_unstemmed | Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array |
| title_short | Beam Tilt Aberration Detection of the Seven-Unit Phased Fiber Laser Array |
| title_sort | beam tilt aberration detection of the seven unit phased fiber laser array |
| topic | laser adaptive optics aberration detection |
| url | https://www.mdpi.com/2072-666X/16/1/38 |
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