High-Q germanium whispering gallery mode microresonators for mid-IR

Tatiana S. Tebeneva; Artem E. Shitikov; Kirill N. Min’kov; Oleg V. Benderov; Valery E. Lobanov; Ivan A. Kaplunov; Igor A. Bilenko; Igor A. Bilenko

doi:10.1364/NOMA.2023.NoM4C.4

Advanced Photonics Congress 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper NoM4C.4
•https://doi.org/10.1364/NOMA.2023.NoM4C.4

High-Q germanium whispering gallery mode microresonators for mid-IR

Tatiana S. Tebeneva, Artem E. Shitikov, Kirill N. Min’kov, Oleg V. Benderov, Valery E. Lobanov, Ivan A. Kaplunov, and Igor A. Bilenko

Novel Optical Materials and Applications 2023

Busan Republic of Korea
9–13 July 2023
ISBN: 978-1-957171-26-5

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Nonlinear Materials and Fibers (NoM4C)

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T. S. Tebeneva, A. E. Shitikov, K. N. Min’kov, O. V. Benderov, V. E. Lobanov, I. A. Kaplunov, and I. A. Bilenko, "High-Q germanium whispering gallery mode microresonators for mid-IR," in Advanced Photonics Congress 2023, Technical Digest Series (Optica Publishing Group, 2023), paper NoM4C.4.

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Abstract

We have fabricated high-Q whispering gallery mode microresonators from crystalline germanium. The quality factor of 10⁷ was demonstrated at the 2.68 µm pump wavelength which is to date the highest ever recorded for Ge microresonators.

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