Ultrafast speed, large angle, and high resolution optical beam steering using widely tunable lasers

被引：6
|
作者：
Liu, Gonghai
Lu, Qiaoyin
Guo, Weihua [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China
来源：
OSA CONTINUUM | 2019年 / 2卷 / 05期
关键词：
PHASED-ARRAY;
D O I：
10.1364/OSAC.2.001746
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Ultrafast speed, large angle, and high resolution optical beam steering using widely tunable lasers combined with properly cascaded transmission gratings has been demonstrated. An efficacy of 0.26 degrees/nm has been achieved in free space with three cascaded transmission gratings. Combined with angular magnification through a 4-f system, 28 degrees sweeping angle has been demonstrated with a 34 nm wavelength tuning. Through fast wavelength tuning, ultra-fast beam steering (>10(8)degrees/s) has been achieved with an angular resolution of about 0.15 degrees and a small beam divergence of below 0.06 degrees. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：1746 / 1753
页数：8
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