par Kozyreff, Gregory ;Tlidi, Mustapha
Référence Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), 69, 6, page (1-11), 066202
Publication Publié, 2004
Article révisé par les pairs
Résumé : The semiconductor resonator is an example of an optical system where two modulational instabilities with different wave numbers coexist. In the limit of nascent bistability, the dynamics is generically described by a nonvariational real order parameter equation, of which we give a detailed derivation. This considerably simplifies the linear and weakly nonlinear stability analyses. When the two instabilities are close together, we derive normal form equations and put special emphasis on "envelope" branches of solutions. These particular solutions may connect the two instability points or form an isola. On the basis of these rigorous results, we finally discuss the case of distant modulational instabilities, in both one and two transverse dimensions.