Photopumped room‐temperature edge‐ and vertical‐cavity operation of AlGaAs‐GaAs‐InGaAs quantum‐well heterostructure lasers utilizing native oxide mirrors

Autor:	T. A. Richard, E. I. Chen, Steven A Maranowski, Nick Holonyak, M. J. Ries
Rok vydání:	1994
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Heterojunction Laser Distributed Bragg reflector Waveguide (optics) law.invention Semiconductor laser theory Optical pumping Optics law Vertical direction Optoelectronics business Quantum well
Zdroj:	Applied Physics Letters. 65:740-742
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.112216
Popis:	Data are presented on the 300‐K continuous and pulsed photopumped laser operation of AlyGa1−yAs‐GaAs‐InxGa1−xAs quantum‐well heterostructure (QWH) crystals that utilize large‐index‐step high‐contrast distributed Bragg reflector mirrors. The mirrors are formed by selective lateral oxidation (H2O+N2, 425 °C) of three lower and three upper AlAs layers in the structure, resulting in enhanced cavity Q in the vertical direction. The laterally oxidized mirrors, a small lower and an upper ‘‘stack’’ that sandwich a lateral waveguide and double QW active region, are of sufficient quality to permit vertical‐cavity laser operation of the QWH crystals.
Databáze:	OpenAIRE
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