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High-energy soliton pulse generation with a passively mode-locked Er/Yb-doped multifilament-core fiber laser

 
: Ortac, B.; Limpert, J.; Jetschke, S.; Unger, S.; Reichel, V.; Kirchhof, J.; Tünnermann, A.

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Applied Physics. B 98 (2010), No.1, pp.27-31
ISSN: 0340-3793
ISSN: 0721-7269
ISSN: 0946-2171
ISSN: 1432-0649
English
Journal Article
Fraunhofer IOF ()
1.55 MU-M; normal-dispersion; operation

Abstract
We report the generation of high-energy short pulses from a mode-locked erbium/ytterbium-doped large-mode-area multifilament-core fiber laser operating in the purely anomalous dispersion regime. The self-starting fiber laser emits 400 mW of average output power at a pulse repetition rate of 44 MHz, corresponding to a pulse energy of 9.1 nJ. The laser produces near transform-limited output pulses with pulse duration of 1.6 ps, corresponding to 5 kW peak power. This new type of low-nonlinearity fibers demonstrates the power and energy scaling potential of fiber-based short pulse lasers in the eye-safe region.

: http://publica.fraunhofer.de/documents/N-113389.html