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Abstract: The stabilization of steady states is studied in a modified Lang-Kobayashimodel of a semiconductor laser. We show that multiple time-delayed feedback,realized by a Fabry-Perot resonator coupled to the laser, provides a valuabletool for the suppression of unwanted intensity pulsations, and leads to stablecontinuous-wave operation. The domains of control are calulated in dependenceon the feedback strength, delay time cavity round trip time, memory parametermirror reflectivity, latency time, feedback phase, and bandpass filtering,Due to the optical feedback, multistable behavior can also occur in the form ofdelay-induced intensity pulsations or other modes for certain choices of thecontrol parameters. Control may then still be achieved by slowly ramping theinjection current during turn-on.



Author: Thomas Dahms, Philipp Hövel, Eckehard Schöll

Source: https://arxiv.org/







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