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Fast and low grating lobe multi-beam steering with a subarray level unequally spaced optical phased array
Y. Wu; S. Shao and D. Che
2021
发表期刊Journal of the Optical Society of America B: Optical Physics
ISSN7403224
卷号38期号:11页码:3417-3424
摘要A grating-lobe-suppressed optical phased array (OPA) based on an unequally spaced technique is proposed to realize multi-beam steering, in which the multi-beam is achieved using the subaperture (SA) technique. The element distribution in SA is optimized by a modified genetic algorithm to minimize peak sidelobe levels (PSLL). The results show that grating lobes can be well suppressed using the proposed technique within the whole scanning range of the beams. The PSLL of the optimized unequally spacedOPA reaches as lowas 0.21 in the5 beam direction, which is much better than the equally spaced OPA. Simultaneously, multi-beam asynchronous scanning can be achieved, which significantly improves the accuracy and flexibility of beam steering control. Besides, the simulations show that the spacing range between adjacent elements and the element number should be appropriately chosen to achieve better sidelobe suppression and a narrowbeam width. 2021 Optical Society of America.
DOI10.1364/JOSAB.434347
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收录类别SCI ; EI
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/65243
专题中国科学院长春光学精密机械与物理研究所
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Y. Wu,S. Shao and D. Che. Fast and low grating lobe multi-beam steering with a subarray level unequally spaced optical phased array[J]. Journal of the Optical Society of America B: Optical Physics,2021,38(11):3417-3424.
APA Y. Wu,&S. Shao and D. Che.(2021).Fast and low grating lobe multi-beam steering with a subarray level unequally spaced optical phased array.Journal of the Optical Society of America B: Optical Physics,38(11),3417-3424.
MLA Y. Wu,et al."Fast and low grating lobe multi-beam steering with a subarray level unequally spaced optical phased array".Journal of the Optical Society of America B: Optical Physics 38.11(2021):3417-3424.
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