W
Wolfgang Elsässer
Researcher at Technische Universität Darmstadt
Publications - 101
Citations - 2258
Wolfgang Elsässer is an academic researcher from Technische Universität Darmstadt. The author has contributed to research in topics: Semiconductor laser theory & Laser. The author has an hindex of 21, co-authored 100 publications receiving 2141 citations. Previous affiliations of Wolfgang Elsässer include University of Marburg.
Papers
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Journal ArticleDOI
Chaos Synchronization and Spontaneous Symmetry-Breaking in Symmetrically Delay-Coupled Semiconductor Lasers
TL;DR: The results give evidence for subnanosecond coupling-induced synchronized chaotic dynamics in conjunction with a spontaneous symmetry-breaking, and a well-defined time lag between the dynamics of the two lasers, and an asymmetric physical role of the subsystems.
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Intensity instabilities of semiconductor lasers under current modulation, external light injection, and delayed feedback
TL;DR: Various scenarios, such as period doubling, frequency locking, quasiperiodicity, and intermittency, are observed experimentally as functions of the control parameters.
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Fast Pulsing and Chaotic Itinerancy with a Drift in the Coherence Collapse of Semiconductor Lasers
Ingo Fischer,G.H.M. van Tartwijk,Alfred M. Levine,Wolfgang Elsässer,Ernst O. Göbel,Daan Lenstra +5 more
TL;DR: The first experimental observation of irregular picosecond light pulses within the coherence collapse of a semiconductor laser subject to delayed moderate optical feedback is reported.
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Delay dynamics of semiconductor lasers with short external cavities: bifurcation scenarios and mechanisms.
Tilmann Heil,Ingo Fischer,Wolfgang Elsässer,Bernd Krauskopf,Kirk Green,Athanasios Gavrielides +5 more
TL;DR: By varying the external cavity phase, this work finds a cyclic scenario leading from stable intensity emission via periodic behavior to regular and irregular pulse packages, and finally back to stable emission.
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Synchronization of delay-coupled oscillators: a study of semiconductor lasers.
Hans-Jürgen Wünsche,S. Bauer,J. Kreissl,O. V. Ushakov,N. Korneyev,Fritz Henneberger,E. Wille,Erzgräber H,Michael Peil,Wolfgang Elsässer,Ingo Fischer +10 more
TL;DR: Novel delay-induced scenarios leading from optical frequency locking to successive states of periodic intensity pulsations are observed and theoretical treatment reveals the universal character of the findings for delay-coupled systems.