New approaches to supercontinuum control in the long pulse regime
Résumé
We review recent developments for controlling supercontinuum spectral structure generated in photonic crystal fibers. Specifically, we describe two different approaches to generating supercontinuum with improved stability characteristics in the long pulse regime where the use of picosecond or nanosecond pulses is generally associated with large instabilities and decoherence. On the one hand, the use of dispersion-varying fibers results in efficient soliton compression and symmetric dispersive wave generation mechanism leading to near-uniform spectra. On the other hand, applying a modulation on the input pulse allows control of "optical rogue wave" fluctuations with significant stabilization of the long wavelength Raman solitons position.
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