High-resolution aliasing-free optical beam steering

被引：472

作者：

Hutchison, David N. ^{[1
]}

Sun, Jie ^{[1
]}

Doylend, Jonathan K. ^{[1
]}

Kumar, Ranjeet ^{[1
]}

Heck, John ^{[1
]}

Kim, Woosung ^{[1
]}

Phare, Christopher T. ^{[1
]}

Feshali, Avi ^{[1
]}

Rong, Haisheng ^{[1
]}

机构：

[1] Intel Corp, Intel Labs, 2200 Mission Coll Blvd, Santa Clara, CA 95054 USA

来源：

OPTICA | 2016年 / 3卷 / 08期

关键词：

PHASED-ARRAY;

D O I：

10.1364/OPTICA.3.000887

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Many applications, including laser (LIDAR) mapping, free-space optical communications, and spatially resolved optical sensors, demand compact, robust solutions to steering an optical beam. Fine target addressability (high steering resolution) in these systems requires simultaneously achieving a wide steering angle and a small beam divergence, but this is difficult due to the fundamental trade-offs between resolution and steering range. So far, to our knowledge, chip-based two-axis optical phased arrays have achieved a resolution of no more than 23 resolvable spots in the phased-array axis. Here we report, using non-uniform emitter spacing on a large-scale emitter array, a dramatically higher-performance two-axis steerable optical phased array fabricated in a 300 mm CMOS facility with over 500 resolvable spots and 80 degrees steering in the phased-array axis (measurement limited) and a record small divergence in both axes (0.14 degrees). Including the demonstrated steering range in the other (wavelength-controlled) axis, this amounts to two-dimensional beam steering to more than 60,000 resolvable points. (C) 2016 Optical Society of America

引用

页码：887 / 890

页数：4

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