中国激光, 2018, 45 (6): 0605002, 网络出版: 2018-07-05   

自聚焦阵列艾里光束的实验实现 下载: 1022次

Realization of Experiment on Auto-Focusing Array Airy Beam
作者单位
西安理工大学自动化与信息工程学院, 陕西 西安 710048
摘要
具有自聚焦性的阵列艾里光束的光束强度较强,光束密度较大,对大气湍流和大气散射的抑制优势明显,可在接收端接收到较强的光信号,提高大气激光通信质量。将多个可产生艾里光束的立方相位膜片进行有序排列可生成多相位膜片,利用多相位膜片可产生具有自聚焦性的阵列艾里光束。仿真和实验说明了阵列艾里光束的自聚焦过程及光斑尺寸对其自聚焦性能的影响。结果表明,基于多相位膜片产生的阵列艾里光束具有自聚焦性,且其自聚焦的聚焦位置随光斑尺寸的变大而变大。因此,通过控制阵列中每个艾里光束的光斑尺寸,可有效控制艾里光束的自聚焦位置。
Abstract
Self-focused array Airy beam has properties of high strength and large beam density, which makes it have strong inhibition for atmospheric turbulence and atmospheric scattering. Thus it can be used to receive much stronger signals on the receiver side and greatly improve the quality of atmospheric laser communication. A plurality of cubic phase masks that can produce Airy beams are orderly arranged to produce a multiphase diaphragm, which then can produce an array Airy beam with self-focusing. The simulation and experiment explain the auto-focusing process of Airy beams and the effect of spot size on its auto-focusing performance. The experimental results show that the array Airy beam, based on multiphase diaphragms, can be auto-focus, and the auto-focusing size gets larger as the spot size gets larger. Thus, by means of adjusting the spot size of each Airy beam in the array, the Airy's auto-focusing position can be controlled effectively.

吴鹏飞, 柯熙政, 宋强强. 自聚焦阵列艾里光束的实验实现[J]. 中国激光, 2018, 45(6): 0605002. Pengfei Wu, Xizheng Ke, Qiangqiang Song. Realization of Experiment on Auto-Focusing Array Airy Beam[J]. Chinese Journal of Lasers, 2018, 45(6): 0605002.

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