Low-frequency fluctuations observed in the coherence collapse of semiconductor lasers are numerically investigated based on the Lang-Kobayashi model. It is found that the attractor in the compound cavity mode loses its stability due to a crisis with an antimode. Chaotic itinerancy among the destabilized compound cavity modes is also found.

• Received 9 December 1993

DOI:https://doi.org/10.1103/PhysRevA.50.2719