دورية أكاديمية
Alternation of Defects and Phase Turbulence Induces Extreme Events in an Extended Microcavity Laser
| العنوان: | Alternation of Defects and Phase Turbulence Induces Extreme Events in an Extended Microcavity Laser |
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| المؤلفون: | Sylvain Barbay, Saliya Coulibaly, Marcel G. Clerc |
| المصدر: | Entropy, Vol 20, Iss 10, p 789 (2018) |
| بيانات النشر: | MDPI AG, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Science LCC:Astrophysics LCC:Physics |
| مصطلحات موضوعية: | complex dynamics, microcavity laser, spatiotemporal chaos, Science, Astrophysics, QB460-466, Physics, QC1-999 |
| الوصف: | Out-of-equilibrium systems exhibit complex spatiotemporal behaviors when they present a secondary bifurcation to an oscillatory instability. Here, we investigate the complex dynamics shown by a pulsing regime in an extended, one-dimensional semiconductor microcavity laser whose cavity is composed by integrated gain and saturable absorber media. This system is known to give rise experimentally and theoretically to extreme events characterized by rare and high amplitude optical pulses following the onset of spatiotemporal chaos. Based on a theoretical model, we reveal a dynamical behavior characterized by the chaotic alternation of phase and amplitude turbulence. The highest amplitude pulses, i.e., the extreme events, are observed in the phase turbulence zones. This chaotic alternation behavior between different turbulent regimes is at contrast to what is usually observed in a generic amplitude equation model such as the Ginzburg–Landau model. Hence, these regimes provide some insight into the poorly known properties of the complex spatiotemporal dynamics exhibited by secondary instabilities of an Andronov–Hopf bifurcation. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1099-4300 |
| Relation: | http://www.mdpi.com/1099-4300/20/10/789; https://doaj.org/toc/1099-4300 |
| DOI: | 10.3390/e20100789 |
| URL الوصول: | https://doaj.org/article/d6ffe3d0ccf94f7dbaeb7d41af33813c |
| رقم الأكسشن: | edsdoj.6ffe3d0ccf94f7dbaeb7d41af33813c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10994300 |
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| DOI: | 10.3390/e20100789 |