Instabilities and Bifurcations of a DFB Laser Frequency-Stabilized by a High-Finesse Resonator
V. Tronciu1, H. Wenzel2, and H.J. Wünsche2,3,4
Published in:
IEEE J. Quantum Electron., vol. 53, no. 1, 2200109 (2017).
Abstract:
Recently reported miniature configurations with semiconductor distributed feedback lasers under resonant feedback are considered theoretically. Limiting instabilities and bifurcations are systematically explored by combining the theory of chirp reduction and a bifurcation analysis. It is shown that the regime of optimal chirp reduction also exhibits the best local stability. It suffers only from undamping of relaxation oscillations in a finite interval of feedback strength. The existence of a separate strong-feedback regime with high stability is consistent with the two experiments available so far. We regard this feature as a generic specificum of miniature configurations not known from large-scale setups. This regime can open new prospects for applications of compact frequency-stabilized semiconductor lasers with extremely low noise and small line width.
1 Department of Physics, Technical University of Moldova, 2004 Chisinau, Moldova
2 Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, 12489 Berlin, Germany
3 Weierstrass Institute for Applied Analysis and Stochastics, 10117 Berlin, Germany
4 Humboldt-Universität zu Berlin, 10099 Berlin, Germany
Index Terms:
Bifurcation, distributed feedback lasers, dynamics, frequency stability, laser noise, nonlinear systems, optical coupling, optical feedback, optical resonators, semiconductor lasers.
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