Glass based microresonators

S. Berneschi; F. Cosi; D. Farnesi; G. Frigenti; G. C. Righini; S. Pelli; S. Soria; F. Baldini; F. Prudenzano; G. Persichetti; R. Bernini; Y. Dumeige; P. Féron; D. Ristić; M. Ivanda; G. Nunzi Conti

doi:10.1117/12.2311459

17 May 2018 Glass based microresonators

S. Berneschi, F. Cosi, D. Farnesi, G. Frigenti, G. C. Righini, S. Pelli, S. Soria, F. Baldini, F. Prudenzano, G. Persichetti, R. Bernini, Y. Dumeige, P. Féron, D. Ristić, M. Ivanda, G. Nunzi Conti

Author Affiliations +

Proceedings Volume 10683, Fiber Lasers and Glass Photonics: Materials through Applications; 106830F (2018) https://doi.org/10.1117/12.2311459
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

Surface tension induced whispering gallery mode (WGM) micro-resonators can be made in glass with very high quality factor Q. In fact, low losses amorphous glassy dielectrics can be easily shaped in high-surface-quality spheroids by thermal reflow. Since the pioneering works on fused silica microspheres showing several orders of magnitude higher Qs compared to previous findings, a large number of studies have been performed in the last years on glass based microresonators. Main results include frequency conversion through non-linear effects and micro-lasers, filtering and optical switching, RF photonics and sensing. Besides spheres, alternatives shapes like micro-bottles and micro-bubbles have been implemented to improve the resonator performances depending on the application. Other glasses rather than silica have been considered in order to enhance properties like transparency windows and non-linear effects. This presentation will review the main results we obtained on micro-laser sources in erbium doped microcavities, parametric conversion in silica microspheres, and stimulated Brillouin scattering in silica microbubbles. Potentials of coated silica microspheres implemented to add the functionalities of the coating material will be also presented.

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Citation Download Citation

S. Berneschi, F. Cosi, D. Farnesi, G. Frigenti, G. C. Righini, S. Pelli, S. Soria, F. Baldini, F. Prudenzano, G. Persichetti, R. Bernini, Y. Dumeige, P. Féron, D. Ristić, M. Ivanda, and G. Nunzi Conti "Glass based microresonators", Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 106830F (17 May 2018); https://doi.org/10.1117/12.2311459

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