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Updated: May 1, 2026
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Optical frequency conversion in silica-whispering-gallery-mode microspherical resonators
D Farnesi1, A Barucci2, G C Righini1
1IFAC-CNR Institute of Applied Physics "N. Carrara", Miplab, Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy and Centro Studi e Ricerche "E. Fermi", P. Del Viminale 2, 00184 Rome, Italy.
Abstract:
High quality factor whispering-gallery-mode microresonators are ideally suited for nonlinear optical interactions. We analyze, experimentally and theoretically, a variety of χ((3)) nonlinear interactions in silica microspheres, consisting of third harmonic generation and Raman assisted third order sum-frequency generation in the visible. A tunable, room temperature, cw multicolor emission in silica microspherical whispering-gallery-mode microresonators has been achieved by controlling the cavity mode dispersion and exciting nonequatorial modes for efficient frequency conversion.
