Author/Authors :
J.، Nilsson, نويسنده , , J.K.، Sahu, نويسنده , , D.N.، Payne, نويسنده , , Y.، Jeong, نويسنده ,
Abstract :
A ytterbium-doped fibre laser with up to 1 kW of continuous-wave output power at 1.09 (mu)m with a slope efficiency of 80% and a good beam quality (M/sup 2/=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.
