Novel phased array optical scanning device implemented using GaAs/AlGaAs technology
作者:
D. R. Wight,
J. M. Heaton,
B. T. Hughes,
J. C. H. Birbeck,
K. P. Hilton,
D. J. Taylor,
期刊:
Applied Physics Letters
(AIP Available online 1991)
卷期:
Volume 59,
issue 8
页码: 899-901
ISSN:0003-6951
年代: 1991
DOI:10.1063/1.105270
出版商: AIP
数据来源: AIP
摘要:
A novel type of optical beam scanning device based on the same principle as a phased array radar has been made and demonstrated. This phased array optical scanning device consisted of a uniformly illuminated array of ten closely spaced, single mode GaAs/AlGaAs electrooptic waveguides, each of which was individually addressed to give more than 2&pgr; radians of optical phase control. This gave a line of ten point sources of light on a 3 &mgr;m pitch at the output face of the array. By independently phase shifting these light sources the output wavefront was controlled to scan a 2° wide beam through 20° in the far field.
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