Array design using rotational symmetry for high performance optical phased arrays

Ilyas Kandid; Winnie N. Ye

doi:10.1117/12.2650953

17 March 2023 Array design using rotational symmetry for high performance optical phased arrays

Ilyas Kandid, Winnie N. Ye

Author Affiliations +

Proceedings Volume 12425, Smart Photonic and Optoelectronic Integrated Circuits 2023; 124250B (2023) https://doi.org/10.1117/12.2650953
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Optical phased arrays (OPAs) have seen frequent implementation in applications requiring beam steering such as light detection and ranging (LiDAR) and free-space optical communications. These applications require narrow beamwidths and large steering ranges which are seldom found simultaneously. Grating sidelobes found in the far field patterns limit the steering range of an OPA due to the uniformly pitched elements spacing of < λ/2. Here we implement an array design that exploits the rotational symmetry of adjacent subarrays to suppress the sidelobes for both planar and circular sub-array lattices, greatly enhancing the OPA’s steering range.

Conference Presentation

Citation Download Citation

Ilyas Kandid and Winnie N. Ye "Array design using rotational symmetry for high performance optical phased arrays", Proc. SPIE 12425, Smart Photonic and Optoelectronic Integrated Circuits 2023, 124250B (17 March 2023); https://doi.org/10.1117/12.2650953

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