Opto-Electronic Engineering, Volume. 49, Issue 7, 210414(2022)
Research on beam steering of numerous sub-aperture fiber laser phased array
Figures & Tables(21)
Fig. 1. Multi-aperture fiber laser phased array.(a) 19 apertures fiber laser phased array basic module; (b) 57 apertures fiber laser phased array; (c) Conception of meter-scale equivalent aperture fiber laser phased array from the basic module fiber laser phased array (703 apertures)
Fig. 3. Beam steering process of stepped phase folding model along x-axis
Fig. 4. Far-field distribution diagram of fiber laser phased array steering model.(a) Envelope factor; (b) Grid factor; (c) Far-field distribution
Fig. 5. The relationship diagram of s-θ-Δφ in double logarithmic coordinates
Fig. 6. Near-field distribution diagram of fiber laser phased array model. (a) 19 apertures; (b) 133 apertures; (c) 703 apertures
Fig. 7. Partial far-field spot distribution of 19 apertures in x-axis scanning process
Fig. 8. Partial far-field spot distribution of 133 apertures in x-axis scanning process
Fig. 9. Partial far-field spot distribution of 703 apertures in x-axis scanning process
Fig. 10. Partial far-field spot distribution of 19 apertures in y-axis scanning process
Fig. 11. Partial far-field spot distribution of 133 apertures in y-axis scanning process
Fig. 12. Partial far-field spot distribution of 703 apertures in y-axis scanning process
Fig. 13. Near diffraction limit continuous scanning process of 19 apertures along x-axis
Fig. 14. Near diffraction limit continuous scanning process of 133 apertures along x-axis
Fig. 15. Near diffraction limit continuous scanning process of 703 apertures along x-axis
Fig. 16. Near diffraction limit continuous scanning process of 19 apertures along y-axis
Fig. 17. Near diffraction limit continuous scanning process of 133 apertures along y-axis
Fig. 18. Near diffraction limit continuous scanning process of 703 apertures along y-axis
Fig. 19. Scanning trajectories of multi-aperture fiber laser phased array in one period.
(a), (c) and (e) are 19, 133 and 703 apertures scanning along x-axis respectively; (b), (d) and (f) are
19, 133 and 703 apertures scanning along y-axis respectively
Table 1. Parameters of fiber laser phased array models
View tableView in ArticleTable 1. Parameters of fiber laser phased array models
Array sizes λ/nm ω0/mm D/m d/mm sx/mm sy/mm 19 apertures 1064 79 1.1 202 112 194 133 apertures 1064 26 1.1 66 36.5 63 703 apertures 1064 11 1.1 28 15.5 26.8
Table 2. Simulation results of multi-aperture fiber laser phase controlled scanning
View tableView in ArticleTable 2. Simulation results of multi-aperture fiber laser phase controlled scanning
Array sizes δθ/μrad θx/μrad θy/μrad 19 apertures 1.2 ±2.96 ±2.43 133 apertures 1.2 ±9.27 ±7.96 703 apertures 1.2 ±21.88 ±18.91
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Xin Zhou, Fan Zou, Jiali Jiang, Feng Li, Chao Geng, Xinyang Li. Research on beam steering of numerous sub-aperture fiber laser phased array[J]. Opto-Electronic Engineering, 2022, 49(7): 210414
Paper Information
Category: Article
Received: Dec. 25, 2021
Accepted: --
Published Online: Aug. 1, 2022
The Author Email: Geng Chao (gengchao@ioe.ac.cn)
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