Second-harmonic generation in three-well and bound-to-continuum GaAs-based quantum-cascade lasers

Autor: Aaron Maxwell Andrews, S. Golka, Gottfried Strasser, C. Pflügl, Tomas Roch, Werner Schrenk, M. Austerer
Rok vydání: 2006
Předmět:
Zdroj: Applied Physics B. 85:231-234
ISSN: 1432-0649
0946-2171
DOI: 10.1007/s00340-006-2302-2
Popis: We present efficient second-harmonic generation in state of the art GaAs-based quantum-cascade lasers with nonlinear output powers up to 100 μW. The nonlinear output was significantly improved by applying an AlGaAs waveguide structure, which guides both, the fundamental and nonlinear light. We further show the influence of the doping in the active region on the nonlinear light generation by comparing two similar structures with different doping levels.
Databáze: OpenAIRE