Dynamics of Lang-Kobayshi laser equations with large control coefficient

Grigorieva E.V., Kaschenko I.S., Kaschenko S.A.

Yaroslavl State University , Russia

We study dynamics of single-mode semiconductor laser under strong external optical feedback. The model introduced by Lang and Kobayashi includes terms with delayed argument. In the case of large control coefficient we derive continual sets of quasi-normal forms in local vicinity of the bifurcation parameters. On the base of such parabolic equations we discuss the phenomenon of multistable cycles and tori in the delayed system.