Measurement of pump-induced thermal effect in Er/Yb codoped fibre

Hwa Yaw Tam, Y. Z. Xu, M. S. Demokan

Research output: Journal article publicationConference articleAcademic researchpeer-review


We report here the experimental results of pump-induced thermal effect in Er/Yb fibers. A 10-mm long fiber Bragg grating, written directly in a highly photosensitive B/Ge/Si annulus of a 12-mm long Er/Yb-P/Al/Si fiber, was employed for determining the temperature rise caused by nonradiative transitions in the Er/Yb fiber by measuring its Bragg wavelength shift. A temperature rise of 0.85 °C per mW of pump power was measured for the Er/Yb fiber. A fiber laser constructed with a FBG written directly in one end of the fiber and a mirror butt joined to the other end was investigated for the pump-induced thermal effect. Its lasing wavelength was shifted by 0.25 nm when the pump power was varying from 4 mW to 56 mW.
Original languageEnglish
Pages (from-to)473-477
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 1998
EventProceedings of the 1998 International Conference on Applications of Photonic Technology, ICAPT - Ottawa, Canada
Duration: 29 Jul 199831 Jul 1998

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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