TY - GEN
T1 - Fabrication of dispersion engineered ultrahigh-Q crystalline optical microresonator for broad-bandwidth optical parametric oscillation
AU - Fujii, Shun
AU - Wada, Koshiro
AU - Kakinuma, Yasuhiro
AU - Tanabe, Takasumi
N1 - Funding Information:
This work is supported by the Strategic Information and Communications RD Promotion Programme (191603001) of MIC; JSPS KAKENHI (JP18K19036, JP18J21797), Ministry of Education, Culture, Sports, Science, and Technology (MEXT) Q-LEAP (Quantum LEAP), and the Amada Foundation. We thank Y. Hayama, H. Amano, and H. Kumazaki for microresonator fabrication and technical support.
Publisher Copyright:
© 2021 SPIE
PY - 2021
Y1 - 2021
N2 - We demonstrate the all-precision-machining fabrication of ultrahigh-quality-factor (Q) crystalline optical microresonators. The obtained Q exceeds 100 million for both magnesium fluoride (MgF2) and calcium fluoride (CaF2) materials. This constitutes the highest Q factor obtained for whispering gallery mode crystalline microresonators fabricated solely by ultra-precision machining. We also achieve octave-wide optical parametric oscillation using an MgF2 resonator fabricated with a computer-controlled machining process. This method readily enables advanced dispersion engineering for optical parametric oscillation and makes it possible to explore microcavity nonlinear optics and quantum optics without the need for skilled manual polishing techniques.
AB - We demonstrate the all-precision-machining fabrication of ultrahigh-quality-factor (Q) crystalline optical microresonators. The obtained Q exceeds 100 million for both magnesium fluoride (MgF2) and calcium fluoride (CaF2) materials. This constitutes the highest Q factor obtained for whispering gallery mode crystalline microresonators fabricated solely by ultra-precision machining. We also achieve octave-wide optical parametric oscillation using an MgF2 resonator fabricated with a computer-controlled machining process. This method readily enables advanced dispersion engineering for optical parametric oscillation and makes it possible to explore microcavity nonlinear optics and quantum optics without the need for skilled manual polishing techniques.
KW - Optical microresonators
KW - Optical parametric oscillation
KW - Ultraprecision machining
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U2 - 10.1117/12.2579393
DO - 10.1117/12.2579393
M3 - Conference contribution
AN - SCOPUS:85107199945
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Laser Resonators, Microresonators, and Beam Control XXIII
A2 - Ilchenko, Vladimir S.
A2 - Armani, Andrea M.
A2 - Sheldakova, Julia V.
A2 - Kudryashov, Alexis V.
A2 - Paxton, Alan H.
PB - SPIE
T2 - Laser Resonators, Microresonators, and Beam Control XXIII 2021
Y2 - 6 March 2021 through 11 March 2021
ER -