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Updated: Oct 3, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
Dynamics of semiconductor lasers subject to delayed optical feedback: the short cavity regime
T Heil1, I Fischer, W Elsässer
1Institut für Angewandte Physik, Technische Universität, Darmstadt, Schlossgartenstrasse 7, D-64289 Darmstadt, Germany.
Abstract:
We give experimental and numerical evidence for a new dynamical regime in the operation of semiconductor lasers subject to delayed optical feedback occurring for short delay times. This short cavity regime is dominated by a striking dynamical phenomenon: regular pulse packages forming a robust low-frequency state with underlying fast, regular intensity pulsations. We demonstrate that these regular pulse packages correspond to trajectories moving on global orbits comprising several destabilized fixed points within the complicated phase space structure of this delay system.
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