Beam alignment based on two-dimensional power spectral density of a near-field image Article Swipe
Shenzhen Wang
,
Qiang Yuan
,
Fa Zeng
,
Xin Zhang
,
Junpu Zhao
,
Kehong Li
,
Xiaolu Zhang
,
Qiao Xue
,
Ying Yang
,
Wanjun Dai
,
Wei Zhou
,
Yuanchen Wang
,
Kuixing Zheng
,
Jingqin Su
,
Dongxia Hu
,
Qihua Zhu
·
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1364/oe.25.026591
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1364/oe.25.026591
Beam alignment is crucial to high-power laser facilities and is used to adjust the laser beams quickly and accurately to meet stringent requirements of pointing and centering. In this paper, a novel alignment method is presented, which employs data processing of the two-dimensional power spectral density (2D-PSD) for a near-field image and resolves the beam pointing error relative to the spatial filter pinhole directly. Combining this with a near-field fiducial mark, the operation of beam alignment is achieved. It is experimentally demonstrated that this scheme realizes a far-field alignment precision of approximately 3% of the pinhole size. This scheme adopts only one near-field camera to construct the alignment system, which provides a simple, efficient, and low-cost way to align lasers.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.25.026591
- OA Status
- gold
- Cited By
- 6
- References
- 23
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2767070554
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W2767070554Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1364/oe.25.026591Digital Object Identifier
- Title
-
Beam alignment based on two-dimensional power spectral density of a near-field imageWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2017Year of publication
- Publication date
-
2017-10-17Full publication date if available
- Authors
-
Shenzhen Wang, Qiang Yuan, Fa Zeng, Xin Zhang, Junpu Zhao, Kehong Li, Xiaolu Zhang, Qiao Xue, Ying Yang, Wanjun Dai, Wei Zhou, Yuanchen Wang, Kuixing Zheng, Jingqin Su, Dongxia Hu, Qihua ZhuList of authors in order
- Landing page
-
https://doi.org/10.1364/oe.25.026591Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://doi.org/10.1364/oe.25.026591Direct OA link when available
- Concepts
-
Optics, Pinhole (optics), Beam (structure), Laser, Spatial filter, Spectral density, Filter (signal processing), Fiducial marker, Image processing, Near and far field, Power (physics), Physics, Computer science, Image (mathematics), Artificial intelligence, Computer vision, Telecommunications, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
6Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 1, 2023: 2, 2021: 1, 2020: 1, 2019: 1Per-year citation counts (last 5 years)
- References (count)
-
23Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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