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Optical phased array antenna with wide steering range using grating array superlattices
Author(s): Zijin Wu; Wei Jiang; Jinsong Xia; Qingzhong Huang
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Paper Abstract

We present a optical phased array antenna with gratings by using shallow ethced grating coupler on silicon-oninsulator for large angle optical beam steering. By decreasing the spacing of antenna to 0.9 μm, The steering range of the antenna can reach as large as 106° with a SNR of -7dB. To prevent crosstalk from grating coupler with small element spacing, we change the width of each grating to cause phase mismatch between adjacent antennas. Specific design is also made to the periods of each antenna in order to make the steering angle of antenna the same. Such grating array superlattices have great potential in LIDAR and free-space communication for its large steering range and small SNR.

Paper Details

Date Published: 24 July 2018
PDF: 6 pages
Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108272U (24 July 2018); doi: 10.1117/12.2500591
Show Author Affiliations
Zijin Wu, Huazhong Univ. of Science and Technology (China)
Wei Jiang, Huazhong Univ. of Science and Technology (China)
Jinsong Xia, Huazhong Univ. of Science and Technology (China)
Qingzhong Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10827:
Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018)
Yingjie Yu; Chao Zuo; Kemao Qian, Editor(s)

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