Observation of Brillouin scattering in a high-index doped silica chip waveguide

作者：Zerbib, M.; Hoang, V. T.; Beugnot, J. C.; Huy, K. P.; Little, B.; Chu, S. T.; Moss, D. J.; Morandotti, R.; Wetzel, B.; Sylvestre, T.^*

来源：Results in Physics, 2023, 52: 106830.

DOI：10.1016/j.rinp.2023.106830

• Integrated photonics
• Silicon photonics
• Brillouin scattering
• Nonlinear optics

We report the observation of Brillouin backscattering in a 50-cm long spiral high-index doped silica chip waveguide and measured a Brillouin frequency shift of 16 GHz which is in very good agreement with theoretical predictions and numerical simulations based on the elastodynamics equation.

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