Efficient multibeam large-angle nonmechanical laser beam steering from computer-generated holograms rendered on a liquid crystal spatial light modulator

被引：33

作者：

Lindle, James R. ^{[1
]}

Watnik, Abbie T. ^{[1
]}

Cassella, Vincent A. ^{[1
]}

机构：

[1] US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA

来源：

APPLIED OPTICS | 2016年 / 55卷 / 16期

关键词：

PHASED-ARRAY;

D O I：

10.1364/AO.55.004336

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Multibeam large-angle beam steering is demonstrated in the visible spectral region by imprinting computer-generated holographic Fresnel zone plates on a liquid crystal spatial light modulator (SLM) configured as the first element of a telescope. The position and intensity of each beam are controlled independently. The laser beam is steered over a +/- 37 degrees field of regard, with the power in the beam at 37 degrees being greater than 50% of the on-axis power. The power delivered on axis for a single beam was 48% of the power incident on the SLM. The beam profile remained Gaussian over the full steering range, and the on-axis beam divergence is 2.1 mrad. (c) 2016 Optical Society of America

引用

页码：4336 / 4341

页数：6

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