We present the effects of the doping concentration on a set of terahertz quantum-cascade-lasers emitting around 2.75 THz. The threshold current density decreases linearly with the doping. The output power drops monotonically.
© 2007 Optical Society of America
A. Benz, G. Fasching, A. M. Andrews, K. Unterrainer, T. Roch, W. Schrenk, and G. Strasser, " The Influence of Doping on the Performance of Terahertz Quantum-Cascade-Lasers," in Optical Terahertz Science and Technology, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper WB5.
References are not available for this paper.