Conjugated MEMS Phased Arrays for Large Field of View Random Access Scanning

被引：7
|
作者：
Ashida, Yuki [1 ,2 ]
Hamann, Stephen [1 ]
Landry, Joseph [1 ]
Solgaard, Olav [1 ]
机构：
[1] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA
[2] SCREEN Holdings Co Ltd, Res & Dev Dept, Kyoto 6128486, Japan
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 20期
关键词：
Phased arrays; Diffraction; Diffraction gratings; Modulation; Laser beams; Switches; Lenses; Beam steering; integrated optoelectronics; optoelectronic devices; LIDAR;
D O I：
10.1109/LPT.2020.3021910
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Multiple microelectromechanical system (MEMS) phased arrays in optical conjugation enable scanning over extended angular ranges beyond what is possible with a single device. We demonstrate this method for random access beam steering at 250 kHz using a MEMS phased array and a switchable grating modulator, achieving 4,352 resolvable lines from 2,176 line pairs over a field of view (FOV) of +/- 3.74 degrees in the Fourier plane. With projection optics, this is extended to a far-field FOV of +/- 24.7 degrees without reduction of the number of resolvable lines.
引用
收藏
页码：1291 / 1294
页数：4
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