Instabilities for Quantum-Cascade Lasers Under Self-Phase Modulation

摘要：

Theoretical analysis of lasing instability in quantum-cascade lasers was carried out. A midinfrared quantum-cascade laser structure with triple resonance levels was chosen as the prototype of the lasing medium with high Kerr nonlinearity from optical transitions. The self-phase modulation effect induced by Kerr nonlinearity was found to possibly change the unstable frequency domain significantly, i.e., not only broaden the unstable domain but also drive it from single-mode to multi-mode. The instability mechanisms of quantum-cascade lasers include one like the coherent multi-mode RishenNummedal-Graham-Haken instability and the spatialhole-burning-induced single-mode instability.

关键词： quantum-cascade lasers instability self-phase modulation Kerr nonlinearity

作者: J. Bai

作者单位: Department of Electrical and Computer Engineering University of Minnesota,Duluth,MN, 55812, USA

会议类型: 国际会议

会议名称: 2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)

会议地点: 大连

会议语种:英文

页码: 717-720

在线出版日期: 2011-07-29（万方平台首次上网日期，不代表论文的发表时间）