Study of whispering gallery modes in a cylindrical microresonator excited by a tilted fiber taper

Vishnu Kavungal, Lin Bo, Qiang Wu, Mianzhen Teng, Chongxiu Yu, Gerald Farrell, Yuliya Semenova

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

Abstract

We studied the excitation of whispering gallery modes (WGMs) in a cylindrical microresonator formed by a short length of a multimode fiber. The light was evanescently coupled into the fiber from a micro-cylinder whose tilt angle was varied from perpendicular to parallel with respect to the fiber taper. Narrow WGM resonances are observed in the transmission spectrum of the fiber taper with a maximum Q factor of ∼105. Evolution of the transmission spectrum with the change of tilt angle involved changes in the number of WGMs in the spectrum for smaller tilts and the disappearance of WGM resonances at large tilt angles.

Original languageEnglish
Title of host publication23rd International Conference on Optical Fibre Sensors
PublisherSPIE
ISBN (Print)9781628411751
DOIs
Publication statusPublished - 2014
Event23rd International Conference on Optical Fibre Sensors - Santander, Spain
Duration: 2 Jun 20146 Jun 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9157
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference23rd International Conference on Optical Fibre Sensors
Country/TerritorySpain
CitySantander
Period2/06/146/06/14

Keywords

  • Micro-cylinder
  • Microresonator
  • Optical fiber devices
  • Whispering gallery modes

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