Hybrid Silicon Nitride-Thin Film Lithium Niobate Based Efficient Grating Coupler

Priyank Sain; Srinivas Talabattula; Gopalkrishna Hegde

doi:10.1364/ASSL.2022.JW3A.16

Optica Advanced Photonics Congress 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper JW3A.16
•https://doi.org/10.1364/ASSL.2022.JW3A.16

Hybrid Silicon Nitride-Thin Film Lithium Niobate Based Efficient Grating Coupler

Priyank Sain, Srinivas Talabattula, and Gopalkrishna Hegde

Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials 2022

Maastricht,Limburg Netherlands
24–28 July 2022
ISBN: 978-1-957171-16-6

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Poster Session II- Virtual (JW3A)

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P. Sain, S. Talabattula, and G. Hegde, "Hybrid Silicon Nitride-Thin Film Lithium Niobate Based Efficient Grating Coupler," in Optica Advanced Photonics Congress 2022, Technical Digest Series (Optica Publishing Group, 2022), paper JW3A.16.

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Abstract

An alternate way of designing a grating coupler on X cut thin film LNOI-Si₃N₄ based platform is proposed considering the contamination and fabrication issues in CMOS fabrication facility. The coupling efficiency of 44% at 1550nm and 3dB bandwidth of 45nm is obtained for X cut Y propagation Lithium Niobate.

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