Bifurcation behaviour of vertical cavity surface emitting lasers

This paper presents the bifurcation behaviour of the transient response of vertical cavity surface emitting lasers (VCSELs) with different aperture sizes. It is shown that lasers with small aperture size suppress higher order bifurcations and chaos even under large signal modulation and external optical feedback. Therefore, VCSELs with small aperture size have better immunity to irregular response under direct current modulation and external optical feedback.