Electronics Letters, Institution of Engineering and Technology (IET), 2003/39/15/1123-1125
Abstract
Buried heterostructure quantum cascade lasers emitting at 5.64 µm are presented. Continuous-wave (CW) operation has been achieved at –30°C for junction down mounted devices with both facets coated. A 750 µm-long laser exhibited 3 mW of CW power with a threshold current density of 5.4 kA/cm<i>2</i>.
