Bistable and addressable localized vortices in semiconductor lasers.
We demonstrate experimentally that localized emission states in coupled broad-area semiconductor lasers can carry a finite orbital angular momentum. The resulting structures therefore possess the chirality of optical vortices together with the properties of localized structures in dissipative systems, namely, the coexistence with a low intensity homogeneous emission and the mutual independence. These results open the way to the realization of arrays of optically addressable and bistable chiral laser pixels.
Genevet
P
P
Université de Nice Sophia Antipolis, Institut Non-Linéaire de Nice, UMR 6618, 06560 Valbonne, France.
Barland
S
S
Giudici
M
M
Tredicce
J R
JR