title: Formation of an information network in a self-pulsating multimode laser.
abstract: We investigated self-induced pulsations in a globally-coupled microchip multimode solid-state laser operating on a Lambda transition. A variety of dynamic states, featuring locking of pulsation frequencies, multidimensional quasiperiodic, and chaotic pulsations, induced by nonlinear modal interactions were observed depending on the number of oscillating modes. The underlying modal interplay was characterized in terms of the dynamic statistical quantity of information circulations. Mode grouping and information sender-receiver-mediator relationships established among mode groups, i.e., "information networks," were identified. Observed dynamic states were reproduced by numerical simulation of a model equation and each dynamic state was shown to create its own information network.
authors.affiliation: Department of Human and Information Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan. ootsuka@keyaki.cc.tokai-u.ac.jp
authors.forename: Kenju
authors.initials: K
authors.lastname: Otsuka
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Miyasaka
authors.forename: Tamaki
authors.initials: T
authors.lastname: Kubota
authors.forename: Jing-Yuan
authors.initials: JY
authors.lastname: Ko