title: Monte Carlo study of intrinsic linewidths in terahertz quantum cascade lasers.
abstract: Based on a coupled simulation of carrier transport and optical cavity field, the intrinsic linewidth in resonant phonon terahertz quantum cascade lasers is self-consistently analyzed. For high power structures, values on the order of Hz are obtained. Thermal photons are found to play a considerable role at elevated temperatures. A linewidth enhancement factor of 0.5 is calculated for the investigated designs.
authors.affiliation: Institute for Nanoelectronics, Technische Universität München, D-80333 Munich, Germany. jirauschek@tum.de
authors.forename: Christian
authors.initials: C
authors.lastname: Jirauschek
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D015233:Models, Statistical; D009010:Monte Carlo Method; D011789:Quantum Theory; D055053:Terahertz Radiation