Output dynamics and stabilisation of a multi-mode double-clad Yb-doped silica fibre laser

Yuen Hong Tsang, Terence A. King, Do Kyeong Ko, Jongmin Lee

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)


The intensity dynamics of the double-clad Yb fibre laser have been characterised. Stabilisation of the fibre laser intensity by using uniform bi-directional pumping is demonstrated. For the single-end-pumped Yb fibre laser, the output becomes more stable for the shorter fibre length due to the higher threshold of stimulated Brillouin scattering, SBS, and Kerr effects and the reduction of saturated absorber effects caused by any unpumped fibre section. By additional pumping in a double-end-pumped configuration, the output power can be scaled higher before detecting high intensity pulses initiated by SBS in the Yb fibre laser due to the reduction of saturable absorption effect. It is confirmed that uniform pumping enhances the stability of the laser output.
Original languageEnglish
Pages (from-to)236-241
Number of pages6
JournalOptics Communications
Issue number1
Publication statusPublished - 1 Mar 2006
Externally publishedYes


  • Double-clad
  • Double-end-pumping
  • Fibre laser
  • Nonlinear
  • Saturable absorber
  • Self-pulsation
  • Stabilisation
  • Yb
  • Ytterbium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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