Paper
13 June 2007 M:N phase synchronization of LFF in an chaotic ECSL system
M. Bulinski, Catalin M. Ticos, I. R. Andrei
Author Affiliations +
Proceedings Volume 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications; 660329 (2007) https://doi.org/10.1117/12.728068
Event: SPIE Fourth International Symposium on Fluctuations and Noise, 2007, Florence, Italy
Abstract
The chaotic behavior of on external-cavity semiconductor laser (ECSL) working in a regime of low-frequency fluctuations (LFFs) can be controlled by external electro-optical phase or intensity current modulation. It is shown by numerical simulation that, for specific values of the modulating frequency and amplitude, the phase difference between the laser power drop-out and the modulator remains constant in time leading to phase-synchronized states, steady LFFs, so called m:n phase synchronization. The degree of stabilization is determined by calculating Shannon's entropy and by the analyzing the stability of the phase locking. The synchronization regions are mapped and zones of low and high amplitude chaos are identified. The light emission can be stabilized from a regime of large amplitude chaotic oscillations corresponding to LFFs to one of low-amplitude chaotic or even periodic oscillations. The dynamics of the laser can be controlled when the period of the modulating signal is comparable with the laser itinerancy time between consecutive external-cavity modes.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Bulinski, Catalin M. Ticos, and I. R. Andrei "M:N phase synchronization of LFF in an chaotic ECSL system", Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 660329 (13 June 2007); https://doi.org/10.1117/12.728068
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KEYWORDS
Modulation

Modulators

Phase shift keying

Semiconductor lasers

Chaos

Oscillators

Electro optics

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