Observation of Brillouin scattering in a high-index doped silica chip waveguide
M. Zerbib, V. T. Hoang, J. C. Beugnot, K. P. Huy, B. Little, S. T., Chu, D. J. Moss, R. Morandotti, B. Wetzel, and T. Sylvestre
TL;DR
This paper reports the experimental observation of Brillouin backscattering in a high-index doped silica chip waveguide, confirming theoretical predictions with measured frequency shifts.
Contribution
First demonstration of Brillouin scattering in a high-index doped silica chip waveguide with quantitative agreement to theory.
Findings
Brillouin frequency shift of 16 GHz measured
Good agreement between experimental results and simulations
Observation in a 50-cm long spiral waveguide
Abstract
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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Taxonomy
TopicsAdvanced Fiber Optic Sensors · Photonic and Optical Devices · Mechanical and Optical Resonators