22 April 2008 Second harmonic generation in Ge-doped silica holey fibres and supercontinuum generation
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Abstract
We demonstrate that second harmonic generation obtained in Ge-doped holey fibres can act as a seed for visible supercontinuum generation. This spectral enlargement is obtained by means of a double-pumping system. By using a microchip laser source delivering sub-nanosecond pulses at 1064 nm and a highly Ge-doped fibre, we obtain a second harmonic generation efficiency of 4.8 % after an optical poling process. A white light continuum extending on more than 250 nm is obtained in visible domain.
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Vincent Tombelaine, Vincent Tombelaine, Christelle Buy-Lesvigne, Christelle Buy-Lesvigne, Vincent Couderc, Vincent Couderc, Philippe Leproux, Philippe Leproux, Gilles Mélin, Gilles Mélin, Kay Schuster, Kay Schuster, Jens Kobelke, Jens Kobelke, Hartmut Bartelt, Hartmut Bartelt, } "Second harmonic generation in Ge-doped silica holey fibres and supercontinuum generation", Proc. SPIE 6990, Photonic Crystal Fibers II, 69900N (22 April 2008); doi: 10.1117/12.781369; https://doi.org/10.1117/12.781369
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