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Cavity design for highly efficient singlemode laser in Yb-doped double clad fibre

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4 Author(s)
H. S. Seo ; Fibre & Photonics Team, Electron. & Telecommun. Res. Inst., Taejon, South Korea ; D. I. Chang ; Y. G. Choi ; K. H. Kim

A novel cavity for a Yb-doped clad-pumped silica fibre laser was designed to enhance the lasing efficiency and the pump absorption into the Yb-doped core, and to provide efficient packaging with low pump power leakage for fibres with totally different parameters. From this cavity setup, we obtained a high power singlemode laser over 3.8 W with a sharp line-width and a slope efficiency of 85%

Published in:

Electronics Letters  (Volume:38 ,  Issue: 17 )