Title :
Injectorless quantum cascade lasers with threshold current densities below 500 A/cm2
Author :
Katz, S. ; Boehm, G. ; Amann, M.-C.
Author_Institution :
Chair of Semicond. Technol., Garching
Abstract :
An injectorless quantum cascade laser design, using four material compositions, and back-facet high-reflective coating is presented. The threshold current density at 300 K and the characteristic temperature were measured with 0.45 kA/cm2 and 140 K, respectively.
Keywords :
laser beams; optical films; optical materials; quantum cascade lasers; back-facet high-reflective coating; injectorless quantum cascade lasers; laser design; laser material; temperature 140 K; temperature 300 K; temperature measurement; threshold current density; Coatings; Composite materials; Indium phosphide; Lattices; Optical design; Optical materials; Optical refraction; Quantum cascade lasers; Temperature measurement; Threshold current; injectorless quantum cascade laser; low threshold; multiple material band design;
Conference_Titel :
Semiconductor Laser Conference, 2008. ISLC 2008. IEEE 21st International
Conference_Location :
Sorrento
Print_ISBN :
978-1-4244-1782-7
Electronic_ISBN :
978-1-4244-1783-4
DOI :
10.1109/ISLC.2008.4636000
