Document Type

Article

Publication Date

10-17-2016

Publication Title

Optics Express

ISSN

1094-4087

Volume

24

Issue

21

First Page

23798

Last Page

23809

DOI

https://doi.org/10.1364/OE.24.023798

PubMed ID

27828216

Abstract

Nonmechanical beam steering is a rapidly growing branch of adaptive optics with applications such as light detection and ranging, imaging, optical communications, and atomic physics. Here, we present an innovative technique for one- and two-dimensional beam steering using multiple tunable liquid lenses. We use an approach in which one lens controls the spot divergence, and one to two decentered lenses act as prisms and steer the beam. Continuous 1D beam steering was demonstrated, achieving steering angles of ±39° using two tunable liquid lenses. The beam scanning angle was further enhanced to ±75° using a fisheye lens. By adding a third tunable liquid lens, we achieved 2D beam steering of ±75°. In this approach, the divergence of the scanning beam is controlled at all steering angles.

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