Abstract
Visible to near-infrared, widely broadened supercontinuum generation is demonstrated using an ultrashort-pulse fiber laser system. A , high-power ultrashort pulse was generated at in an Er-doped fiber-chirped pulse amplification system. An almost pedestal-free second-harmonic pulse was generated at using periodically poled . A widely broadened supercontinuum was generated in a highly nonlinear photonic crystal fiber. In terms of spectral flatness, the total modulation bandwidth was within . All of the fiber devices were fusion spliced so that the system showed good stability. The effect of a pulse-trapping phenomenon in the supercontinuum generation process was discussed from experimental considerations.
© 2009 Optical Society of America
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