Title of article :
Quasi-continuous-wave operation of AlGaAs/GaAs quantum cascade lasers
Author/Authors :
Jun-Qi Liu، نويسنده , , Fengqi Liu، نويسنده , , Xiu-Zhen Lu، نويسنده , , Yu Guo، نويسنده , ,
Zhanguo Wang، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2005
Abstract :
Quasi-continuous-wave operation of AlGaAs/GaAs-based quantum cascade lasers (λ∼9 μm) up to 165 K is reported. The strong temperature dependence of the threshold current density and its higher value in high duty cycle is investigated in detail. The self-heating effect in the active region is explored by changing the operating duty cycles. The degradation of lasing performance with temperature is explained.
Keywords :
Self-heating effect , Quasi-continuous-wave , Injection efficiency , Quantum cascade lasers (QCLs) , Molecule beam epitaxy (MBE)
Journal title :
Physica E Low-dimensional Systems and Nanostructures
Journal title :
Physica E Low-dimensional Systems and Nanostructures
