Simultaneous generation of multiple orbital angular momentum (OAM) modes using a single phase-only element

Simultaneous generation of multiple orbital angular momentum (OAM) modes using a single phase-only element
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使用单个纯相位元件同时生成多个轨道角动量 (OAM) 模式

DOI:
10.1364/oe.23.026221
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发表时间:
2015-10-05
期刊:
影响因子:
3.8
通讯作者:
Wang, Jian
Wang, Jian
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhu, Long;Wang, Jian

文献摘要

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在传统迭代算法的基础上,提出了一种模式搜索辅助迭代(PSI)算法,利用单个纯相位元素同时产生多个轨道角动量(OAM)模。PSI算法能够产生100个随机间隔的OAM模和50个均匀间隔的OAM模,具有高的衍射效率(>93%)、低的相对均方根误差(R-RMSE)和低的标准偏差。此外,我们还可以通过设置PSI算法中的初始权重系数来控制所产生的OAM模式的相对功率分布。(C)2015年美国光学学会
Based on the conventional iterative algorithm, we present a pattern search assisted iterative (PSI) algorithm to simultaneously generate multiple orbital angular momentum (OAM) modes using a single phase-only element. The PSI algorithm shows a favorable operation performance for generating 100 randomly spaced OAM modes and 50 evenly spaced OAM modes with high diffraction efficiency (>93%), low relative root-mean-square error (R-RMSE) and low standard deviation. Moreover, we can also manipulate the relative power distribution of the generated OAM modes simply by setting the initial weight coefficients in the PSI algorithm. (C)2015 Optical Society of America