Jirauschek Christian
Institute for Nanoelectronics, Technische Universität München, D-80333 Munich, Germany.
Opt Express. 2010 Dec 6;18(25):25922-7. doi: 10.1364/OE.18.025922.
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.
基于载流子输运与光腔场的耦合模拟，对共振声子太赫兹量子级联激光器的本征线宽进行了自洽分析。对于高功率结构，获得了赫兹量级的值。发现热光子在高温下起着相当重要的作用。对于所研究的设计，计算出线宽增强因子为0.5。
