Abstract

By coupling femtosecond pulses at λ=1.55 μm in a short length Z=95 cm of photonic crystal fiber, we observe the simultaneous generation of two visible radiation components. Frequency-resolved optical gating experiments combined with analysis and modal simulations suggest that the mechanism for their generation is third-harmonic conversion of the fundamental pulse and its split Raman self-shifted component.

© 2001 Optical Society of America

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