Integrated compact optical orbital angular momentum generator based on multi-layer non-uniform grating coupler

Lirong Cheng; Simei Mao; Houyu Chen; Qian Li; H. Y. Fu

doi:10.1364/CLEO_AT.2022.JW3A.38

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper JW3A.38
•https://doi.org/10.1364/CLEO_AT.2022.JW3A.38

Integrated compact optical orbital angular momentum generator based on multi-layer non-uniform grating coupler

Lirong Cheng, Simei Mao, Houyu Chen, Qian Li, and H. Y. Fu

CLEO: Applications and Technology 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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Joint Poster Session II-A (In-person) (JW3A)

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L. Cheng, S. Mao, H. Chen, Q. Li, and H. Y. Fu, "Integrated compact optical orbital angular momentum generator based on multi-layer non-uniform grating coupler," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper JW3A.38.

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Abstract

We propose a compact Si₃N₄-Si₃N₄-SOI grating coupler for generating optical vortex beams. With various mode input combinations, the multi-layer device can be tuned to emit beam with OAM states of ± 1 and ± 2.

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