Abstract
Maintenance of higher doping levels in the AlxGa1−xAs barrier layers of double‐heterostructure lasers permits one to use smaller molar fractions x, thereby minimizing the lattice mismatch between AlxGa1−xAs and GaAs. We estimate conduction‐band and valence‐band parameters of AlxGa1−xAs and show the relationship between laser threshold current and doping level.
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