Investigation on InGaAs/InAlAs quantum cascade lasers.

Zhang, Q. S. and Liu, F. Q. and Zhang, Y. Z. and Wang, Z. G. and Gao, H. H. and Krier, A. (2001) Investigation on InGaAs/InAlAs quantum cascade lasers. Journal of Infrared and Millimeter Waves, 20 (1). pp. 41-43. ISSN 1001-9014

Abstract

The preparation and main characteristics of the InGaAs/InAlAs quantum cascade laser were given. The device has a reinforced ridge waveguide structure. The threshold current obtained at 80K is about 0.5A, an d the corresponding threshold current density is about 5kA/cm2.