Research on Large Divergence Angle Laser Ranging System
This study investigates a laser ranging technology scheme featuring a large divergence angle for both the emitted and received laser beams, focusing on applications where both the measured target and the ranging carrier are high-mobility platforms. A dual-concave beam-reducing lens design is adopted...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/5/482 |
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| author | Junwen Ji Suhui Yang Yimin Feng |
| author_facet | Junwen Ji Suhui Yang Yimin Feng |
| author_sort | Junwen Ji |
| collection | DOAJ |
| description | This study investigates a laser ranging technology scheme featuring a large divergence angle for both the emitted and received laser beams, focusing on applications where both the measured target and the ranging carrier are high-mobility platforms. A dual-concave beam-reducing lens design is adopted to reshape the original beam divergence angle of 10 mrad from the erbium glass laser into a ranging output beam divergence angle of 26 mrad, while maintaining the Gaussian energy distribution of the original laser beam. A φ500 μm photosensitive surface APD detector is used, and a combination of aspherical and spherical elements is employed in the receiving optical system to achieve a 30 mrad large field-of-view echo reception within the small photosensitive surface. This laser ranging system addresses the challenge of aiming and tracking for laser ranging between relatively high-speed moving objects and reduces the stability precision requirements for the ranging carrier platform. |
| format | Article |
| id | doaj-art-a37c53c6d22a4497a27072f048d48d4f |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-a37c53c6d22a4497a27072f048d48d4f2025-08-20T03:47:58ZengMDPI AGPhotonics2304-67322025-05-0112548210.3390/photonics12050482Research on Large Divergence Angle Laser Ranging SystemJunwen Ji0Suhui Yang1Yimin Feng2School of Optics and Photonics, Beijing Institute of Technology, Beijing 10081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 10081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 10081, ChinaThis study investigates a laser ranging technology scheme featuring a large divergence angle for both the emitted and received laser beams, focusing on applications where both the measured target and the ranging carrier are high-mobility platforms. A dual-concave beam-reducing lens design is adopted to reshape the original beam divergence angle of 10 mrad from the erbium glass laser into a ranging output beam divergence angle of 26 mrad, while maintaining the Gaussian energy distribution of the original laser beam. A φ500 μm photosensitive surface APD detector is used, and a combination of aspherical and spherical elements is employed in the receiving optical system to achieve a 30 mrad large field-of-view echo reception within the small photosensitive surface. This laser ranging system addresses the challenge of aiming and tracking for laser ranging between relatively high-speed moving objects and reduces the stability precision requirements for the ranging carrier platform.https://www.mdpi.com/2304-6732/12/5/482laser ranginglarge divergence anglelarge field of viewspaceborneplatform stabilities |
| spellingShingle | Junwen Ji Suhui Yang Yimin Feng Research on Large Divergence Angle Laser Ranging System Photonics laser ranging large divergence angle large field of view spaceborne platform stabilities |
| title | Research on Large Divergence Angle Laser Ranging System |
| title_full | Research on Large Divergence Angle Laser Ranging System |
| title_fullStr | Research on Large Divergence Angle Laser Ranging System |
| title_full_unstemmed | Research on Large Divergence Angle Laser Ranging System |
| title_short | Research on Large Divergence Angle Laser Ranging System |
| title_sort | research on large divergence angle laser ranging system |
| topic | laser ranging large divergence angle large field of view spaceborne platform stabilities |
| url | https://www.mdpi.com/2304-6732/12/5/482 |
| work_keys_str_mv | AT junwenji researchonlargedivergenceanglelaserrangingsystem AT suhuiyang researchonlargedivergenceanglelaserrangingsystem AT yiminfeng researchonlargedivergenceanglelaserrangingsystem |