Optical phased array based on subwavelength grating antennas

Zhengquan Huang; Jiaxin Chen; Weiming Yao; Yunxu Sun; Yong Yao; Jiazhu Duan; Xiangjie Zhao; Xiaochuan Xu

doi:10.1117/12.2613622

5 March 2022 Optical phased array based on subwavelength grating antennas

Zhengquan Huang, Jiaxin Chen, Weiming Yao, Yunxu Sun, Yong Yao, Jiazhu Duan, Xiangjie Zhao, Xiaochuan Xu

Proceedings Volume 12007, Optical Interconnects XXII; 120070V (2022) https://doi.org/10.1117/12.2613622
Event: SPIE OPTO, 2022, San Francisco, California, United States

Conference Poster

Abstract

We demonstrated a large aperture 1×16 silicon photonics OPA leveraging one-millimeter-long subwavelength grating antennas (SGA). The SGA is implemented by placing subwavelength silicon segments in the vicinity of the conventional strip waveguide so that they only interact with the evanescent field of the strip waveguide. The strength of the SGA can be conveniently controlled by tuning the location and size of the silicon segments. With the 1×16 OPA, a light beam of 0.1°×1.8° with a sidelobe suppression ratio > 10 dB is achieved.

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Citation Download Citation

Zhengquan Huang, Jiaxin Chen, Weiming Yao, Yunxu Sun, Yong Yao, Jiazhu Duan, Xiangjie Zhao, and Xiaochuan Xu "Optical phased array based on subwavelength grating antennas", Proc. SPIE 12007, Optical Interconnects XXII, 120070V (5 March 2022); https://doi.org/10.1117/12.2613622

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