Parts | Days | Selection | Search | Downloads | Help
HL: Fachverband Halbleiterphysik
HL 31: Poster I: Devices, Quantum Dots and Quantum Wires
HL 31.2: Poster
Tuesday, March 23, 2010, 18:30–20:30, Poster D1
Small and large signal analysis of quantum dot lasers — •Roland Aust1, Christian Otto1, Joshua Horowitz2, Kathy Lüdge1, and Eckehard Schöll1 — 1Institut f. Theoretische Physik, Sekr. EW 7-1, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin — 2Massachusetts Institute of Technology, Cambridge
In this work a quantum dot laser with an external cavity is modeled using a rate equation system treating electron and hole dynamics separately and including microscopically calculated carrier-carrier scattering rates. We show under which conditions the model reproduces the dynamics of an experimental setup perfectly, and, which additional effects are observed by introducing the external cavity. The laser’s small signal response is discussed in detail as well as a large signal analysis in terms of eye diagrams.