TY - GEN
T1 - Bifurcations of composite-cavity modes in multi-stripe laser arrays
AU - Erzgräber, Hartmut
AU - Wieczorek, Sebastian
AU - Krauskopf, Bernd
PY - 2008
Y1 - 2008
N2 - We consider a semiconductor laser device, where the active region consists of parallel stripes in the longitudinal direction. In the composite cavity model, the stripes are coupled via the transversal modes of the entire compound laser device. By calculating the spatial mode profiles we accurately account for the frequency detuning between the modes as well as for the gain and coupling of the individual modes, which are determined by spatial overlap integrals of the mode profiles. In particular, we show the nonlinear dependence of these quantities on the geometry of the laser device. The temporal dynamics of the composite cavity modes are described by corresponding rate equations. Bifurcation analysis of these rate equations, which are coupled to the spatial mode equations, unravels the dynamics of a twin-stripe laser. We identify different locking regions as well as regions with possibly chaotic dynamics.
AB - We consider a semiconductor laser device, where the active region consists of parallel stripes in the longitudinal direction. In the composite cavity model, the stripes are coupled via the transversal modes of the entire compound laser device. By calculating the spatial mode profiles we accurately account for the frequency detuning between the modes as well as for the gain and coupling of the individual modes, which are determined by spatial overlap integrals of the mode profiles. In particular, we show the nonlinear dependence of these quantities on the geometry of the laser device. The temporal dynamics of the composite cavity modes are described by corresponding rate equations. Bifurcation analysis of these rate equations, which are coupled to the spatial mode equations, unravels the dynamics of a twin-stripe laser. We identify different locking regions as well as regions with possibly chaotic dynamics.
KW - Composite cavity laser
KW - Coupled lasers
KW - Dynamics and bifurcations
KW - Numerical continuation
UR - https://www.scopus.com/pages/publications/50249142887
U2 - 10.1117/12.780621
DO - 10.1117/12.780621
M3 - Conference proceeding
AN - SCOPUS:50249142887
SN - 9780819471956
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Semiconductor Lasers and Laser Dynamics III
T2 - Semiconductor Lasers and Laser Dynamics III
Y2 - 7 April 2008 through 9 April 2008
ER -