All-optical noninvasive control of unstable steady states in a semiconductor laser.
All-optical noninvasive control of a multisection semiconductor laser by means of time-delayed feedback from an external Fabry-Perot cavity is realized experimentally. A theoretical analysis, in both a generic model as well as a device-specific simulation, points out the role of the optical phase. Using phase-dependent feedback we demonstrate stabilization of the continuous-wave laser output and noninvasive suppression of intensity pulsations.
Schikora
S
S
Institut für Physik, Humboldt Universität zu Berlin, Newtonstrasse 15, 12489 Berlin, Germany. schikora@physik.hu-berlin.de
Hövel
P
P
Wünsche
H-J
HJ
Schöll
E
E
Henneberger
F
F