The semiconductor lasers in use today rely on various types of cavity, making use of Fresnel
reflection at a cleaved facet, total internal reflection between two different media, Bragg …

An in-depth theoretical as well as experimental analysis of the nonlinear dynamics in
semiconductor lasers with active optical feedback is presented. Use of a monolithically …

We present a refined model for multi-section lasers, introducing an additional equation for
material polarization in the well-known traveling wave model. We investigate the …

We describe the basic ideas behind the concept of distributed feedback (DFB) lasers with
short optical feedback for the generation of high-frequency self-pulsations and show the …

Self-pulsing and dual-mode lasing in a square microcavity semiconductor laser are studied
experimentally. Self-sustained pulses originating from undamped relaxation oscillation …

We investigate the dynamics of a multisection laser implementing a delayed optical
feedback experiment where the length of the cavity is comparable to the length of the laser …

We perform a bifurcation analysis of the Lang–Kobayashi system for a laser with delayed
optical feedback in the situation of moderate delay times. Using scaling methods, we are …

Time-delayed feedback control (TDFC) is transferred to the optical domain and applied to
complex multisection semiconductor lasers as used in optical communication. Pyragas-type …

Self-pulsations reproducibly achieved in newly developed lasers with two distributed
feedback sections and with an additional phase tuning section are investigated. The …

A theoretical model of a self-pulsating three-section DFB laser with an integrated phase
tuning section is established. It is based on traveling wave equations and the standard …