Spherical mcrocavity resonator fabrication based on laser technology

Q. K. Kieu, V. P. Veiko

Research output: Contribution to journalConference articlepeer-review


We discuss our recent experiments that aim at fabrication of optical microsphere resonators and methods for their quality estimation. First, free space laser melting technique (FSLMT) was investigated. Different regimes of laser action and its corresponding results were discussed. Secondly, we fabricated optical microsphere resonators of different sizes and optical glasses (including active glasses) using FSLMT. Whispering gallery modes (WGMs) in fabricated microsphere resonators were then observed in microspheres' fluorescence spectrums, the free spectral ranges were in good agreement with diameters of microspheres. Furthermore, WGMs of microsphere resonators were excited by an optical fiber-taper coupler to assess the microspheres' Q-factor. Applications of optical microsphere resonators such as microlaser, simple block for studying emission and nonlinear optical effects were demonstrated.

Original languageEnglish (US)
Article number23
Pages (from-to)141-148
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
EventFifth International Symposium on Laser Precision Microfabrication - Nara, Japan
Duration: May 11 2004May 14 2004


  • Fiber-taper
  • Free space laser melting technique
  • Microsphere laser
  • Microsphere resonators
  • WGMs

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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