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Thermodynamic noises limit the frequency stability of resonators. Here, we present the first complete characterization of thermo-refractive noise in Si3N4 microresonators. The measurements are in good agreement with theoretical analysis and FEM simulation of the structures. (c) 2019 The Author(s)
Michele Ceriotti, Kevin Rossi, Venkat Kapil, Federico Grasselli, Edgar Albert Engel, Giulio Imbalzano
Tobias Kippenberg, Junqiu Liu, Erwan Guillaume Albert Lucas, Arslan Sajid Raja, Guanhao Huang, Nils Johan Engelsen