SEM cross section of an InP QCL heterostructure oxidation test sample after nonselective oxidation at for 4 h.
Thermodynamic favorability, Gibbs free energy , of the wet and dry oxidation reactions for the various alloys in the QCL heterostructure. Solid and dashed lines between the calculated binary end points are representative of ternary alloys and are results of simple linear interpolation.
SEM cross section of native oxide confined laser ridge before metallization. Inset shows thickness of oxide formed in the field between devices.
P-I-V characteristics of native oxide confined QCL device. Inset shows a representative linear spectrum.
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