Title :
Continuous wave operation of buried heterostructure quantum cascade lasers
Author :
Beck, M. ; Hofstetter, D. ; Aellen, T. ; Faist, J.
Author_Institution :
Inst. de Phys., Neuchatel Univ.
Abstract :
We present buried heterostructure QC lasers with optimized design, an improved waveguiding scheme and better heat dissipation for high temperature CW operation. The laser´s lower waveguide cladding and waveguide core consisted of ternary InAlAs and InGaAs layers grown lattice matched to an n-doped InP substrate by molecular beam epitaxy (MBE). The active region is a repetition of 35 stages, each stage comprising a four quantum well active zone designed for emission at 9.1 μm
Keywords :
III-V semiconductors; aluminium compounds; cooling; gallium arsenide; indium compounds; molecular beam epitaxial growth; optical fabrication; quantum well lasers; ridge waveguides; waveguide lasers; 9.1 micron; InAlAs layers; InAlAs-InGaAs; InGaAs layers; InP; MBE; active region; buried heterostructure quantum cascade lasers; continuous wave operation; heat dissipation; high temperature CW operation; lattice matched; lower waveguide cladding; molecular beam epitaxy; n-doped InP substrate; quantum well active zone; quantum well lasers; waveguide core; waveguiding scheme; Design optimization; Indium compounds; Indium gallium arsenide; Lattices; Molecular beam epitaxial growth; Optical design; Quantum cascade lasers; Quantum well lasers; Temperature; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969241
