Introducing negative effective radius variations to control whispering gallery modes propagating on optical fibers

D. V. Krisanov, A. S. Nesterok, I. D. Vatnik, D. V. Churkin

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

We showed that the microresonators of whispering gallery modes on the surface of standard optical fibers can be shaped by introducing negative radius variations of effective radius instead of positive. To do this, the sample of optical fiber is irradiated with CO2 laser and heated to temperatures that are well below the transformation temperature. The method reduces the influence of the heated spot to the surrounding silica and makes the modification method simpler. Combining both positive and negative modification also expands the range of axial shapes of microresonators that can be introduced with CO2 laser heating.

Original languageEnglish
Title of host publicationNanophotonics and Micro/Nano Optics VI
EditorsZhiping Zhou, Kazumi Wada, Limin Tong
PublisherSPIE
ISBN (Electronic)9781510639270
DOIs
Publication statusPublished - 2020
EventNanophotonics and Micro/Nano Optics VI 2020 - Virtual, Online, China
Duration: 11 Oct 202016 Oct 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11556
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNanophotonics and Micro/Nano Optics VI 2020
CountryChina
CityVirtual, Online
Period11.10.202016.10.2020

Keywords

  • microresonator
  • optical fiber
  • whispering gallery mode

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