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Chinese Optics
>
2025
>
涡旋光束轨道角动量的十字线检测法[J]. Chinese Optics. doi: 10.37188/CO.2024-0209
Citation:
涡旋光束轨道角动量的十字线检测法[J].
Chinese Optics
.
doi:
10.37188/CO.2024-0209
涡旋光束轨道角动量的十字线检测法[J]. Chinese Optics. doi: 10.37188/CO.2024-0209
Citation:
涡旋光束轨道角动量的十字线检测法[J].
Chinese Optics
.
doi:
10.37188/CO.2024-0209
PDF
( 729 KB)
涡旋光束轨道角动量的十字线检测法
doi:
10.37188/CO.2024-0209
Received Date:
19 Nov 2024
Rev Recd Date:
11 Feb 2025
Accepted Date:
18 Feb 2025
Available Online:
26 Feb 2025
Abstract
Abstract
本文提出一种利用十字线衍射进行涡旋光束OAM检测的方法,其远场分布中与OAM相关的主亮斑包含了入射光束的大部分能量(50%~84%),且不存在干扰检测的次亮斑。相比之下,传统小孔衍射法中的主亮斑能量比例极低,尤其是7阶拓扑荷以上的远场主亮斑中只包含不到1%的入射光束能量,且拓扑荷级数越高,次亮斑的干扰性越强。因此,十字线测量法对弱涡旋光束的检测尤为适用,这对于远程的自由空间光通讯发展具有潜在的重要影响。
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通讯作者:
陈斌, bchen63@163.com
1.
沈阳化工大学材料科学与工程学院 沈阳 110142
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