Toward visible cw-pumped supercontinua |
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Authors: | Cumberland B A Travers J C Popov S V Taylor J R |
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Affiliation: | Femtosecond Optics Group, Imperial College London, London, UK. b.cumberland05@imperial.ac.uk |
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Abstract: | We report a 1 mum cw-pumped supercontinuum that extends short of the pump wavelength to 0.65 mum. This is achieved by using a 50 W Yb fiber laser in combination with a photonic crystal fiber with a carefully engineered zero-dispersion wavelength. We show that the short-wavelength generation is due to a combination of four-wave mixing and dispersive wave trapping by solitons. The evolution and limiting factors of the continuum are discussed. |
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