Complex Dynamics of semiconductor Quantum dot Lasers subject to delayed Optical Feedback

Complex Dynamics of semiconductor Quantum dot Lasers subject to delayed Optical Feedback
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受延迟光反馈影响的半导体量子点激光器的复杂动力学

DOI:
10.1142/s021812741250246x
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发表时间:
2012
期刊:
Int. J. Bifurc. Chaos
影响因子:
--
通讯作者:
T. Erneux
T. Erneux
中科院分区:
--
文献类型:
--
作者:
C. Otto;B. Globisch;K. Lüdge;E. Schöll;T. Erneux

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We study a five-variable electron-hole model for a quantum-dot (QD) laser subject to optical feedback. The model includes microscopically computed Coulomb scattering rates. We consider the case of a low linewidth enhancement factor and a short external cavity. We determine the bifurcation diagram of the first three external cavity modes and analyze their bifurcations. The first Hopf bifurcation marks the critical feedback rate below which the laser is stable. We derive an analytical approximation for this critical feedback rate that is proportional to the damping rate of the relaxation oscillations (ROs) and inversely proportional to the linewidth enhancement factor. The damping rate is described in terms of the carrier lifetimes. They depend on the specific band structure of the QD device and they are computed numerically.
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DOI: --
发表时间: 2000
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