Title :
Ytterbium-doped large-core fibre laser with 272 W output power
Author :
Jeong, Y. ; Sahu, J.K. ; Williams, R.B. ; Richardson, D.J. ; Furusawa, K. ; Nilsson, J.
Author_Institution :
Optoelectronics Res. Centre, Southampton Univ., UK
fDate :
6/26/2003 12:00:00 AM
Abstract :
A highly efficient cladding-pumped Yb-doped large-core fibre laser, generating up to 272 W of continuous-wave output power at 1.08 μm with a beam quality (M2) of 3.2, is reported. The slope efficiency was 83% with respect to the launched pump power. No saturation (roll-off) was observed in output power with increasing pump power.
Keywords :
fibre lasers; optical pumping; ytterbium; 1.08 micron; 272 W; 83 percent; CW output power; beam quality; cladding pumping; slope efficiency; ytterbium-doped large-core fibre laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030655
