Fig. 13From: Optical vortices in waveguides with discrete and continuous rotational symmetryDependence of the percent of total energy E combined in the core with pulse compression (a) and the pulse width compression factor in the logarithmic scale (b) on the initial pulses [Eq. (29)] parameters P and τ for 7-core hexagonal MCF without modulation. The level H=Hc is depicted by white dashesBack to article page