High-Q WGM microresonators for mid-IR

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

doi:10.1117/12.2643985

4 January 2023 High-Q WGM microresonators for mid-IR

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

Author Affiliations +

Proceedings Volume 12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII; 123220X (2023) https://doi.org/10.1117/12.2643985
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

We upgraded the original fabrication method based on melting commercially available ZBLAN (heavy metal fluoride glass) optical fiber to obtain high-quality-factor ZBLAN microspheres with a diameter of 250 to 400 μm. The whispering gallery modes were excited in fabricated microresonators by different coupling elements and the high Q-factors at both 1.55 μm and 2.64 μm were demonstrated. At 1.5 μm the intrinsic Q-factor of (5.4 ± 0.4) · 10⁸ determined by material losses was obtained. For 2.64 μm the quality factor was measured as (1.13 ± 0.22) · 10⁸.

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Tatiana S. Tebeneva, Artem E. Shitikov, Oleg V. Benderov, Valery E. Lobanov, Kirill N. Min’kov, Igor A. Bilenko, and Alexander V. Rodin "High-Q WGM microresonators for mid-IR", Proc. SPIE 12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII, 123220X (4 January 2023); https://doi.org/10.1117/12.2643985

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