Time-resolved dynamics of two-dimensional transverse patterns in broad area lasers.
We report the first direct experimental observation of the fast dynamics (nanosecond scale) of complex two-dimensional transverse patterns in broad area lasers. The laser emission bright peaks forming the transverse patterns are observed to be aperiodically flashing in time with different growing rates. These optical filaments do not move along the cross section during their lifetime, which is close to 2 ns. The experimental observations have also been reproduced by numerical integration of the Maxwell-Bloch equations.
Encinas-Sanz
F
F
Departmento de Optica, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain. fencinas@fis.ucm.es
Melle
Sonia
S
Calderón
Oscar G
OG