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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Adaptive optics compensation of orbital angular momentum beams with a modified Gerchberg-Saxton-based phase retrieval algorithm
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Adaptive optics compensation of orbital angular momentum beams with a modified Gerchberg-Saxton-based phase retrieval algorithm

机译:基于改进的Gerchberg-Saxton的相位检索算法的轨道角动量梁的自适应光学补偿

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摘要

Practical orbital angular momentum (OAM)-based free-space optical (FSO) communications commonly experience serious performance degradation and crosstalk due to atmospheric turbulence. In this paper, we propose a wave-front sensorless adaptive optics (WSAO) system with a modified Gerchberg-Saxton (GS)-based phase retrieval algorithm to correct distorted OAM beams. We use the spatial phase perturbation (SPP) GS algorithm with a distorted probe Gaussian beam as the only input. The principle and parameter selections of the algorithm are analyzed, and the performance of the algorithm is discussed. The simulation results show that the proposed adaptive optics (AO) system can significantly compensate for distorted OAM beams in single-channel or multiplexed OAM systems, which provides new insights into adaptive correction systems using OAM beams. (C) 2017 Elsevier B.V. All rights reserved.
机译:基于实际轨道角动量(OAM)的自由空间光学(FSO)通信通常由于大气湍流而经历严重的性能下降和串扰。 在本文中,我们提出了一种带有修改的Gerchberg-Saxton(GS)的相位检索算法的波前无传感器自适应光学(WSAO)系统,以校正扭曲的OAM光束。 我们使用空间相位扰动(SPP)GS算法作为唯一输入的探测高斯光束。 分析了算法的原理和参数选择,讨论了算法的性能。 仿真结果表明,所提出的自适应光学(AO)系统可以显着补偿单通道或多路复用OAM系统中的扭曲OAM光束,这为使用OAM光束提供了新的校正系统的新见解。 (c)2017年Elsevier B.V.保留所有权利。

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