Author/Authors :
C.-H.، Liu, نويسنده , , B.، Ehlers, نويسنده , , F.، Doerfel, نويسنده , , S.، Heinemann, نويسنده , , A.، Carter, نويسنده , , K.، Tankala, نويسنده , , J.، Farroni, نويسنده , , A.، Galvanauskas, نويسنده ,
Abstract :
It is shown that continuous-wave kW-power fibre lasers can be built using double-clad fibres with relatively small cores. 810 W in a single-transverse-mode output (M/sup 2/=1.27) is demonstrated experimentally with 20 (mu)m core low-NA (NA=0.06) Yb-doped double-clad fibre. A laser numerical model matches experimental results and predicts scalability of achievable powers into a multi-kW range.
