Conference name: Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials 2018Date of Conference: 2–5 July 2018We introduce self-dissimilarity as measure of phase space complexity and predictor of robustness against perturbations. As nonlinearity increases, phase space becomes a random fractal, just before critical transitions. Measurements confirm powerlaw dependence over 7 decades
