N. A. Makarova, V. S. Terentyev, I. D. Vatnik, “Study of light propagation in the regime of whispering gallery modes in a cylindrical microresonator with a partially removed silica cladding by hydrofluoric acid etching”, Optics and Spectroscopy, 2024, Volume 132, Issue 2,Pages <nobr>177

Fiber and integrated optics

Study of light propagation in the regime of whispering gallery modes in a cylindrical microresonator with a partially removed silica cladding by hydrofluoric acid etching

N. A. Makarova^a, V. S. Terentyev^b, I. D. Vatnik^a

^a Novosibirsk State University, 630090 Novosibirsk, Russia
^b Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia

Abstract: We study parameters of cylindrical microresonators based on optical fiber with a partially removed silica cladding by etching with hydrofluoric acid. It was found that a higher degree of silica cladding removal results in a decrease in the quality factor of the microresonator, attributed to the increase in surface roughness.

Keywords: cylindrical microresonator, whispering gallery modes, Q-factor, silica cladding, chemical etching.

Received: 15.12.2023
Revised: 21.12.2023
Accepted: 29.01.2024

DOI: 10.61011/OS.2024.02.57777.5821-23