Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3072596
Keywords
aluminium compounds; current density; gallium arsenide; gallium compounds; III-V semiconductors; indium compounds; molecular beam epitaxial growth; optical fabrication; quantum well lasers; semiconductor quantum wells
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Funding
- Region Languedoc-Roussillon
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We report on a Sb-based type-I laser grown on GaAs substrate, emitting continuous wave at room temperature around 2.2 mu m. The device was grown using solid-source molecular beam epitaxy and comprised two GaInAsSb quantum wells embedded in AlGaAsSb barriers. Despite the large lattice mismatch, a good crystalline quality was obtained, and processed devices operated continuous wave up to 50 degrees C with threshold current densities in the range of 1.5-2.2 kA/cm(2). An optical output power of 3.7 mW was obtained at 20 degrees C.
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