Author :
Nilsson, J. ; Sahu, J.K. ; Jeong, Y. ; Philippov, V.N. ; Soh, D.B.S. ; Codemard, C.A. ; Dupriez, P. ; Kim, J. ; Richardson, D.J. ; Malinowski, A. ; Piper, A.N. ; Price, J.H.V. ; Furusawa, K. ; Clarkson, W.A. ; Payne, D.N.
Abstract :
Over 1 kW of output power has now been reached with nearly diffraction-limited ytterbium-doped fiber lasers. Amplifiers can reach comparable powers, even with single-frequency beams. We review these and other recent results and discuss the possibilities for further progress.