Effects of structural irregularities on modulational instability phase matching in photonic crystal fibers

B. Kibler (1) , C. Billet (1) , J.M. Dudley (1) , R. Windeler (2) , G. Millot (3)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 OFS OPTICS - Dept Phys
3 LPUB - Laboratoire de Physique de l'Université de Bourgogne

The effect of structural irregularities in photonic crystal fibers on scalar and vector modulational instability (MI) processes is studied by numerical simulations and experiments. For an anomalous-dispersion regime pump, variations in core ellipticity as small as 0.5% over length scales of the order of several meters are shown to have a negligible effect on scalar MI, yet they completely suppress vector MI. In contrast, for a normal-dispersion regime pump, vector MI is shown to be robust against such fluctuations.

Domaines: Optique [physics.optics]

B. Kibler, C. Billet, J.M. Dudley, R. Windeler, G. Millot. Effects of structural irregularities on modulational instability phase matching in photonic crystal fibers. Optics Letters, 2004, 29 (16), pp.1903-1905. ⟨10.1364/OL.29.001903⟩. ⟨hal-00096951⟩