Acousto-optic modulation in lithium niobate on sapphire

Christopher J. Sarabalis; Timothy P. McKenna; Rishi N. Patel; Raphaël Van Laer; Amir H. Safavi-Naeini

doi:10.1063/5.0012288

APL Photonics (Aug 2020)

Acousto-optic modulation in lithium niobate on sapphire

Christopher J. Sarabalis,
Timothy P. McKenna,
Rishi N. Patel,
Raphaël Van Laer,
Amir H. Safavi-Naeini

Affiliations

Christopher J. Sarabalis: Department of Applied Physics and Ginzton Laboratory, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305, USA
Timothy P. McKenna: Department of Applied Physics and Ginzton Laboratory, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305, USA
Rishi N. Patel: Department of Applied Physics and Ginzton Laboratory, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305, USA
Raphaël Van Laer: Department of Applied Physics and Ginzton Laboratory, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305, USA
Amir H. Safavi-Naeini: Department of Applied Physics and Ginzton Laboratory, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305, USA

DOI: https://doi.org/10.1063/5.0012288
Journal volume & issue: Vol. 5, no. 8
pp. 086104 – 086104-8

Abstract

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We demonstrate the first acousto-optic modulators in lithium niobate films on sapphire, detailing the dependence of the piezoelectric and optomechanical coupling coefficients on the crystal orientation. This platform supports highly confined, strongly piezoelectric mechanical waves without suspensions, making it a promising candidate for broadband and efficient integrated acousto-optic devices, circuits, and systems.

Published in APL Photonics

ISSN: 2378-0967 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://aplphotonics.aip.org

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