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Complete localization of light and tunable bottle microresonators introduced by bending of an optical fiber

  • Novosibirsk State Technical University

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

In this report, we present a method of fabrication of Surface Nanoscale Axial Photonic (SNAP) bottle microresonators [1] by strong bending of an optical fiber. We experimentally demonstrate that bending of the optical fiber causes the nanometer-scale variation of its local effective radius (ERV) along the fiber axis, which can lead to the complete localization of whispering gallery modes (WGMs) and formation of SNAP bottle microresonators. The simplicity of the introduced method and the ability to tune the induced ERV mechanically is of great importance for the fabrication of robust and tunable SNAP devices such as delay lines [2].

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PublisherIEEE
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - 17 Oct 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
Duration: 23 Jun 2019 → 27 Jun 2019

Conference

Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Country/TerritoryGermany
CityMunich
Period23/06/19 → 27/06/19

Funding

In conclusion, we have demonstrated the possibility to fabricate tunable bottle microresonators by strong bending of the optical fiber. We found that the introduced ERV is proportional to the local curvature of the loop while the ERV maximum is proportional to the maximum of the loop curvature squared. SNAP structures with more complex shapes can be fabricated by advanced bending techniques using specially prepared fiber bending setups. The mechanical tunability of the resonant structures induced by bending is of great importance for the creation of robust and tunable SNAP devices, which can be used for different applications in classical and quantum optical signal processing. This work is supported by Russian Science Foundation (grant 18-72-10053).

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