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Publication Citation: Laser-Machined Ultra-High-Q Microrod Resonators for Nonlinear Optics

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Author(s): Pascal P. Del'Haye; Scott B. Papp; Scott A. Diddams;
Title: Laser-Machined Ultra-High-Q Microrod Resonators for Nonlinear Optics
Published: June 07, 2013
Abstract: Optical whispering-gallery microresonators are useful tools in microphotonics, and non-linear optics at very low threshold powers. Here, we present details about the fabrication of ultra-high-Q whispering-gallery-mode (WGM) resonators made by CO2-laser lathe machining of fused-quartz rods. The resonators can be fabricated in less than one minute and the attained optical quality factors exceed Q=1x109. Demonstrated resonator diameters are in the range between 170 micron and 8 mm (free spectral ranges between 390 GHz and 8 GHz). Using these microresonators, a variety of optical nonlinearities are observed, including Raman scattering, Brillouin scattering and four-wave mixing.
Citation: Applied Physics Letters
Volume: 102
Pages: pp. 221119-1 - 221119-4
Keywords: Fused Silica;Laser Machining;Microresonator;Nonlinear Optics
Research Areas: Physics