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Splitting of resonances in a curved optical fiber-based Fabry-Perot resonator
A.V. Dyshlyuk 1,2,3, U.A. Eryusheva 1, O.B. Vitirk 1,2

1 IACP FEB RAS, 690041, Russia, Vladivostok, 5, Radio Str.,
2 Far Eastern Federal University, 690091, Russia, Vladivostok, 8 Sukhanova Str.,
3 Vladivostok State University of Economics and Services, 690014, Russia, Vladivostok, 41, Gogolya Str.

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DOI: 10.18287/2412-6179-CO-756

Pages: 38-44.

Full text of article: Russian language.

Abstract:
In this work, the splitting of resonance lines in a Fabry-Perot resonator formed by a section of a standard curved single-mode fiber with metal-coated ends is investigated numerically and experimentally. It is shown that this splitting is similar to the Autler-Townes splitting and results from a strong coupling between the fundamental mode of the core and the whispering gallery mode of the cladding of the curved fiber. The influence of all basic parameters of the curved resonator on the splitting of its resonance lines in the reflection and transmission spectra is considered. Prospects for the practical application of the effects studied for high-resolution optical refractometry, as well as the direction of further research are outlined.

Keywords:
Fano resonance, Autler-Townes effect, electromagnetically induced transparency, curved optical fiber, refractometry.

Citation:
Dyshlyuk AV, Eryusheva UA, Vitrik OB. Splitting of resonances in a curved optical fiber-based Fabry-Perot resonator. Computer Optics 2021; 45(1): 38-44. DOI: 10.18287/2412-6179-CO-756.

Acknowledgements:
This work was supported by the Russian Foundation for Basic Research (project No. 20-02-00556А).

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