Microresonator sensors based on evanescent field perturbation

Jaime da Silva; Elie Salameh; Volkan Ötügen; Dominique Fourguette

doi:10.1117/12.2582846

20 April 2021 Microresonator sensors based on evanescent field perturbation

Jaime da Silva, Elie Salameh, Volkan Ötügen, Dominique Fourguette

Proceedings Volume 11672, Laser Resonators, Microresonators, and Beam Control XXIII; 116720Q (2021) https://doi.org/10.1117/12.2582846
Event: SPIE LASE, 2021, Online Only

Abstract

This work demonstrates the feasibility of the evanescent field perturbation sensor approach for both three-dimensional and planar resonator geometries. An optical fiber-coupled silica sphere resonator and an integrated waveguide-ring resonator are used with a smaller sphere inserted in their evanescent tail. In both experiments, the motion of the perturber across the evanescent tail leads to a measurable shift in the resonators’ whispering-gallery-modes. The results show a consistent relationship between the mode shift and the position of the perturber.

Conference Presentation

Citation Download Citation

Jaime da Silva, Elie Salameh, Volkan Ötügen, and Dominique Fourguette "Microresonator sensors based on evanescent field perturbation", Proc. SPIE 11672, Laser Resonators, Microresonators, and Beam Control XXIII, 116720Q (20 April 2021); https://doi.org/10.1117/12.2582846

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