Kerr optical frequency comb generation in strontium fluoride whispering-gallery mode resonators with billion quality factor

We report the fabrication for the first time of a strontium fluoride (SrF(2)) whispering-gallery mode resonator with quality factor in excess of 1 billion. The millimeter-size disk-resonator is polished until the surface roughness decreases down to a root-mean square value of 1.2 nm, as measured wit...

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Bibliographic Details
Published inOptics letters Vol. 40; no. 7; p. 1567
Main Authors Henriet, Rémi, Lin, Guoping, Coillet, Aurélien, Jacquot, Maxime, Furfaro, Luca, Larger, Laurent, Chembo, Yanne K
Format Journal Article
LanguageEnglish
Published United States 01.04.2015
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Summary:We report the fabrication for the first time of a strontium fluoride (SrF(2)) whispering-gallery mode resonator with quality factor in excess of 1 billion. The millimeter-size disk-resonator is polished until the surface roughness decreases down to a root-mean square value of 1.2 nm, as measured with a vertical scanning profilometer. We also demonstrate that this ultrahigh Q resonator allows for the generation of a normal-dispersion Kerr optical frequency comb at 1550 nm.
ISSN:1539-4794
DOI:10.1364/OL.40.001567