Title :
Comparative analysis of thermal properties of various quantum-cascade lasers
Author :
Olejniczak, Lukasz ; Sarza, Robert P. ; Nakwaski, Wlodzimierz
Author_Institution :
Inst. of Phys., Tech. Univ. of Lodz, Lodz
Abstract :
Simulation finite-element thermal model of the quantum-cascade lasers (QCLs) has been developed to investigate thermal properties of various known QCL designs. An important phenomenon of phonon scattering at layer boundaries, which is responsible for a dramatic increase in thermal resistances of multi-layered devices, has been taken into consideration. From among currently known QCLs designs, the double-channel QCL design with a heat sink attached to the active-region device side has happened to manifest definitely the best thermal properties.
Keywords :
finite element analysis; laser beams; phonons; quantum cascade lasers; thermal resistance; thermo-optical effects; active-region device; double-channel laser design; finite-element thermal model; heat sink; layer boundaries; multilayered devices; phonon scattering; quantum-cascade lasers; thermal properties; thermal resistances; Heat sinks; Laser modes; Laser theory; Optical scattering; Particle scattering; Phonons; Quantum cascade lasers; Quantum computing; Superlattices; Thermal conductivity; phonon scattering; quantum-cascade lasers; thermal properties;
Conference_Titel :
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-2625-6
Electronic_ISBN :
978-1-4244-2626-3
DOI :
10.1109/ICTON.2008.4598788
