Precisely dispersion tailored crystalline microresonator with a Q exceeding 108 fabricated by computer-controlled machining

Shun Fujii, Mika Fuchida, Hikaru Amano, Shuya Tanaka, Ryo Suzuki, Yasuhiro Kakinuma, Takasumi Tanabe

研究成果: Conference contribution

抄録

Ultrahigh-Q crystalline microresonators have various potential applications including as microresonator frequency combs [1] and low-noise radio frequency oscillators [2]. Since crystalline materials are transparent in the visible to mid-infrared wavelength region, magnesium fluoride (MgF2) and calcium fluoride (CaF2) microresonators have been expected to achieve broad bandwidth Kerr comb generation. The demand for precise geometrical dispersion control to compensate for material dispersion has recently been increasing because material dispersion in the visible or mid-infrared region is not feasible for obtaining a Kerr comb [3,4]. However, the dispersion engineering of crystalline microresonators remains a major challenge since hand polishing is generally needed after diamond turning to obtain a high Q [5]. This restricts the possibility of tailoring the resonator dispersion because it degrades the controllability of the cross-sectional shape.

本文言語English
ホスト出版物のタイトルThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
出版社OSA - The Optical Society
ISBN(電子版)9781557528209
出版ステータスPublished - 2019
イベントThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 - Munich, Germany
継続期間: 2019 6 232019 6 27

出版物シリーズ

名前Optics InfoBase Conference Papers
Part F140-CLEO_Europe 2019

Conference

ConferenceThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
CountryGermany
CityMunich
Period19/6/2319/6/27

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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