Wide-angle, nonmechanical beam steering with high throughput utilizing polarization gratings

被引：105

作者：

Kim, Jihwan ^{[1
]}

Oh, Chulwoo ^{[1
]}

Serati, Steve ^{[2
]}

Escuti, Michael J. ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA

[2] Boulder Nonlinear Syst Inc, Lafayette, CO 80026 USA

来源：

APPLIED OPTICS | 2011年 / 50卷 / 17期

关键词：

D O I：

10.1364/AO.50.002636

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce and demonstrate a ternary nonmechanical beam steering device based on polarization gratings (PGs). Our beam steering device employs multiple stages consisting of combinations of PGs and wave plates, which allows for a unique three-way (ternary) steering design. Ultrahigh efficiency (similar to 100%) and polarization sensitive diffraction of individual PGs allow wide steering angles (among three diffracted orders) with extremely high throughput. We report our successful demonstration of the three-stage beam steerer having a 44 field of regard with 1: 7 resolution at 1550 nm wavelength. A substantially high throughput of 78%-83% is observed that is mainly limited by electrode absorption and Fresnel losses. (C) 2011 Optical Society of America

引用

页码：2636 / 2639

页数：4

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