Characterization of an Optical Phased Array for use in Free Space Optical Communication Antennas

被引：1
|
作者：
Anisimov, Igor [1 ]
Harris, Scott R. [2 ]
Stadler, Brian K. [3 ]
机构：
[1] LOCI, 300 Coll Pk, Dayton, OH 45469 USA
[2] Flatiron Res LLC, Boulder, CO USA
[3] Air Force Res Lab, Wright Patterson AFB, OH USA
来源：
FREE - SPACE LASER COMMUNICATIONS VIII | 2008年 / 7091卷
关键词：
optical phased array; beam steering; free space optical communications; liquid crystal;
D O I：
10.1117/12.794240
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Liquid Crystal Optical Phased Arrays (LCOPA) capable of steering optical beams over large angles require very large number of individually addressable electrodes that can be reduced by grouping the electrodes into periodic pattern to modulate phase profiles with consequent stepwise phase corrections made by an additional LCOPA. Such phase ramp-corrector configuration allows for reductions in the total number of the addressed electrodes and results in lower costs of development and manufacturing of LCOPA devices. Characterization of the device made by Teledyne Scientific for an experimental RF/EO antenna has been accomplished. Issues concerning optical beam steering efficiency, incident angle dependency and transparent electrodes alignment were investigated.
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页数：10
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