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810 W continuous-wave and singletransverse-mode fibre laser using 201 mu m core Yb-doped double-clad fibre

 
: Liu, C.H.; Ehlers, B.; Doerfel, F.; Heinemann, S.; Carter, A.; Tankala, K.; Farroni, J.; Galvanauskas, A.

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Electronics Letters 40 (2004), No.23, pp.1471-1472
ISSN: 0013-5194
English
Journal Article
Fraunhofer ILT ()

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-2 = 1.27) is demonstrated experimentally with 20 mum 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.

: http://publica.fraunhofer.de/documents/N-87261.html