Acousto-optic modulation in lithium niobate on sapphire

We demonstrate acousto-optic phase modulators in X-cut lithium niobate films on sapphire, detailing the dependence of the piezoelectric and optomechanical coupling coefficients on the crystal orientation. This new platform supports highly confined, strongly piezoelectric mechanical waves without sus...

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Bibliographic Details
Published inarXiv.org
Main Authors Sarabalis, Christopher J, McKenna, Timothy P, Patel, Rishi N, Raphaël Van Laer, Safavi-Naeini, Amir H
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 02.05.2020
Subjects
Acousto-optics
Acoustooptical devices
Broadband
Coupling coefficients
Crystal structure
Lithium niobates
Modulators
Piezoelectricity
Sapphire
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Summary:We demonstrate acousto-optic phase modulators in X-cut lithium niobate films on sapphire, detailing the dependence of the piezoelectric and optomechanical coupling coefficients on the crystal orientation. This new 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.
ISSN:2331-8422