Title :
Ytterbium-doped large-core fibre laser with 1 kW of continuous-wave output power
Author :
Jeong, Y. ; Sahu, J.K. ; Payne, D.N. ; Nilsson, J.
Author_Institution :
Optoelectronics Res. Centre, Univ. of Southampton, UK
fDate :
4/15/2004 12:00:00 AM
Abstract :
A ytterbium-doped fibre laser with up to 1 kW of continuous-wave output power at 1.09 μm with a slope efficiency of 80% and a good beam quality (M2=3.4) is reported. The fibre was pumped by two diode-stack sources launched through opposite ends. No undesirable roll-over was observed in output power with increasing pump power.
Keywords :
fibre lasers; optical pumping; ytterbium; 1 kW; 1.09 micron; continuous wave output power; diode stack source; ytterbium doped large core fibre laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040298