14 July 2000 Dynamics of DFB lasers subject to optical feedback: stability properties of the stable modes
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Proceedings Volume 3944, Physics and Simulation of Optoelectronic Devices VIII; (2000); doi: 10.1117/12.391457
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
Abstract
We present detailed experimental studies of the physical properties of the stable high-gain modes of semiconductor lasers subject to delayed optical feedback. We demonstrate that a sufficient reduction of the linewidth enhancement factor (alpha) is an efficient concept to achieve permanent stable emission on one of these modes. In addition, we confirm major predictions of the Lang-Kobayashi rate equation model concerning the parameter dependence of this stable emission state. Furthermore, we investigate the stability of the stable modes against external perturbations. In particular, we demonstrate that the noise induced escape from the basin of attraction of the stable mode can be well understood if a potential is assumed. Finally, by applying both, external noise, and small signal modulation, we study the interplay of noise, periodic modulation, and determinism in the vicinity of the stable mode. Thereby, we obtain further information about the phase space structure around the stable mode.
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Tilmann Heil, Ingo Fischer, Wolfgang E. Elsaesser, "Dynamics of DFB lasers subject to optical feedback: stability properties of the stable modes", Proc. SPIE 3944, Physics and Simulation of Optoelectronic Devices VIII, (14 July 2000); doi: 10.1117/12.391457; https://doi.org/10.1117/12.391457
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KEYWORDS
Modulation

Laser optics

Semiconductor lasers

Interference (communication)

Laser stabilization

Phase shift keying

Solids

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