Acousto-optic modulation in lithium niobate on sapphire

2020/05/02 by Sarabalis, Christopher J., McKenna, Timothy P., Patel, Rishi N. +2 · 2 citations
#Applied Physics (physics.app-ph) #FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2005.00916

Abstract

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.

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• Fiber-to-chip grating couplers for Lithium Niobate on Sapphire
• Proposal for Forward Brillouin Inter-Modal Scattering in Non-suspended Lithium Niobate Waveguides at Visible Wavelengths

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