Regensburg 2013 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 60: Focus Session: Coherent dynamics in semiconductor nanostructures and coupled devices

HL 60.8: Vortrag

Mittwoch, 13. März 2013, 18:15–18:30, H16

Quantum optical approach towards quantum dot lasers with time-delayed optical self-feedback — Franz Schulze, Alexander Carmele, •Julia Kabuss, and Andreas Knorr — Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Germany

Semiconductor lasers under the influence of time-delayed self-feedback show a large variety of dynamics which includes even chaotic behavior. The Lang-Kobayashi-model[1] (L-K-model) is widely used to study such systems. In contrast to the classical description of the light field within the L-K-model, we present in our contribution a quantum optical treatment of the time-delayed self-feedback. Our theoretical approach is based on a semiconductor quantum-dot laser model [2], which we extend to dynamically take into account photon-photon correlations between the quantized cavity and external photon field. Incorporating the interaction between the different photon modes significantly alters the light-statistics of the cavity field and yields additional insights into the dynamics of quantum-dot lasers with time-delayed self-feedback.
R. Lang and K. Kobayashi, IEEE J. Quantum Electron. 16, 347 (1980)
C. Gies et al., Phys. Rev. A 75, 013803 (2007)