Coherent optoacoustics in waveguides

Birgit Stiller

doi:10.1117/12.2579650

5 March 2021 Coherent optoacoustics in waveguides

Birgit Stiller

Proceedings Volume 11689, Integrated Optics: Devices, Materials, and Technologies XXV; 116891A (2021) https://doi.org/10.1117/12.2579650
Event: SPIE OPTO, 2021, Online Only

Abstract

Optical and acoustic waves can interact over the nonlinear effect of stimulated Brillouin scattering (SBS), which is a coherent process. By using traveling acoustic waves, we recently showed proof-of-principle experiments of Brillouin-based light storage. The particularity of Brillouin-based light storage is the strict phase-matching condition. This allows for different features: simultaneous storage at multiple wavelengths, cascaded storage at different spatial positions, and nonreciprocal storage with a GHz bandwidth. However, the delay time of this technique has so far been limited to the acoustic lifetime of about 10 ns. In this talk, I will discuss our recent results on coherent photon-phonon interaction. One focus will be on a proof-of-principle experiments on how to reinforce acoustic phonons. This enables us to overcome the obstacle of the limited acoustic lifetime by optically reinforcing the acoustic wave.

Conference Presentation

Citation Download Citation

Birgit Stiller "Coherent optoacoustics in waveguides", Proc. SPIE 11689, Integrated Optics: Devices, Materials, and Technologies XXV, 116891A (5 March 2021); https://doi.org/10.1117/12.2579650

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