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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
Publication statusPublished - 2019 Jan 1
EventThe European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 - Munich, Germany
Duration: 2019 Jun 232019 Jun 27

Publication series

NameOptics InfoBase Conference Papers
VolumePart 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

Fingerprint Dive into the research topics of 'Precisely dispersion tailored crystalline microresonator with a Q exceeding 10<sup>8</sup> fabricated by computer-controlled machining'. Together they form a unique fingerprint.

  • Cite this

    Fujii, S., Fuchida, M., Amano, H., Tanaka, S., Suzuki, R., Kakinuma, Y., & Tanabe, T. (2019). Precisely dispersion tailored crystalline microresonator with a Q exceeding 108 fabricated by computer-controlled machining. In The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 [2019-ck_5_6] (Optics InfoBase Conference Papers; Vol. Part F140-CLEO_Europe 2019). OSA - The Optical Society.