Surface acoustic wave stimulated Brillouin scattering in thin-film lithium niobate waveguides

2023/11/09 by Kaixuan Ye, Ye, Kaixuan, Hanke Feng +11
Engineering · Physics and Astronomy · #Acoustic Wave Resonator Technologies #FOS: Physical sciences #Optics (physics.optics) #Photonic and Optical Devices #Photorefractive and Nonlinear Optics

paper · pdf · doi:10.48550/arxiv.2311.14697

openalex publication_date 2023/11/09 · openalex created_date 2023/11/29 · openalex updated_date 2026/08/01

Abstract

We report the first-ever experimental observation of backward stimulated Brillouin scattering (SBS) in thin-film lithium niobate (TFLN) waveguides. The peak Brillouin gain coefficient of the z-cut LN waveguide with a crystal rotation angle of 20^∘ is as high as 84.9m^-1W^-1, facilitated by surface acoustic waves (SAW) at 8.06GHz.

Related

• Suspended Z-cut lithium niobate waveguides for stimulated Brillouin scattering
• On-chip Brillouin Amplifier in Suspended Lithium Niobate Nanowaveguides
• Cross-Polarized Stimulated Brillouin Scattering in Lithium Niobate Waveguides
• Brillouin photonics engine in the thin-film lithium niobate platform
• Proposal for Forward Brillouin Inter-Modal Scattering in Non-suspended Lithium Niobate Waveguides at Visible Wavelengths