Title :
Photonic Crystal Quantum Cascade Lasers with Improved Threshold Characteristics Operating up to Room Temperature
Author :
Höfling, S. ; Heinrich, J. ; Hofmann, Ho. ; Kamp, M. ; Reithmaier, J.P. ; Forchel, A.
Author_Institution :
Tech. Phys., Wurzburg Univ.
Abstract :
We fabricated two-dimensional photonic crystal GaAs/AlGaAs quantum cascade lasers operating at room temperature. Compared to reference devices with cleaved facets, the high reflectivity photonic crystal mirrors lead to a ~34% reduction of the threshold currents
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; laser beams; laser cavity resonators; optical fabrication; photonic crystals; quantum cascade lasers; thermo-optical effects; 293 to 298 K; GaAs-AlGaAs; cleaved facets; high reflectivity photonic crystal mirrors; room temperature; threshold characteristics; threshold currents; two-dimensional photonic crystal quantum cascade lasers; Etching; Finite difference methods; Gallium arsenide; Optical devices; Photonic band gap; Photonic crystals; Quantum cascade lasers; Reflectivity; Temperature; Threshold current;
Conference_Titel :
Semiconductor Laser Conference, 2006. Conference Digest. 2006 IEEE 20th International
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-9560-3
DOI :
10.1109/ISLC.2006.1708104
