Two-dimensional beam scanner based on silicon optical phased array with half-wavelength period

Zhaoyang Zhang; Zhiyan Zhou; Yuehai Wang; Jianyi Yang

doi:10.1117/12.2624750

27 March 2022 Two-dimensional beam scanner based on silicon optical phased array with half-wavelength period

Zhaoyang Zhang, Zhiyan Zhou, Yuehai Wang, Jianyi Yang

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121696E (2022) https://doi.org/10.1117/12.2624750
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

We demonstrate a 63-channel grating-lobe-free optical phased array, in which end-fire antennas were fabricated with a pitch of 775 nm to eliminate grating lobe. Phase mismatch was configured to suppress the optical crosstalk in the dense waveguides. Two-dimensional beam steering within 16°× 2.7° were presented by thermal phase shifting and wavelength tuning.

Citation Download Citation

Zhaoyang Zhang, Zhiyan Zhou, Yuehai Wang, and Jianyi Yang "Two-dimensional beam scanner based on silicon optical phased array with half-wavelength period", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121696E (27 March 2022); https://doi.org/10.1117/12.2624750

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KEYWORDS

Phased array optics

Beam steering

LIDAR

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