Temperature dependence of the wavelength and threshold of fiber-taper-coupled L-band Er 3+-doped tellurite glass microsphere laser

Xiang Peng, Feng Song, Makoto Gonokami, Shibin Jiang, Nasser Peyghambarian

Research output: Contribution to journalConference articlepeer-review


We report on the temperature dependence of L-band laser emission of fiber-taper-coupled Er 3+-doped tellurite glass microsphere. Pumping at 1480nm instead of 975nm was used to enhance the coupling efficiency, reduce the internal thermal effect, and increase the output laser emission. The microsphere laser emission threshold increased and the emitted laser wavelength shifted with temperature. The experimental results are explained with a quasi-four-level model, showing that a significant reduction of laser threshold can be achieved at lower temperatures and higher Q values of this microsphere laser.

Original languageEnglish (US)
Pages (from-to)191-198
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
EventOptical Component and Materials - San Jose, CA, United States
Duration: Jan 26 2004Jan 27 2004


  • Microsphere laser
  • Temperature dependence
  • Threshold
  • Wavelength
  • Whispering gallery modes

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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