Multistate intermittency in erbium-doped fiber laser
We propose the method for detection and localization of different types of coexisting oscillatory regimes which alternate with each other leading to multistate intermittency. Our approach is based on consideration of wavelet spectrum energies. The new technique is tested in an erbium-doped fiber laser with four coexisting periodic orbits, where external noise induces intermittent switches between coexisting states. Statistical characteristics of multistate intermittency, such as the mean duration of the phases for every oscillation type, are examined with the help of the developed method. We demonstrate strong advantages of the proposed technique over previously used amplitude methods.