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Peak PL intensity, as a function of annealing temperature, for two QWs emitting after optimal annealing. The optimal annealing temperature was significantly lower for the more highly strained QW containing more indium and antimony.
Room-temperature pulsed curves for lasers of similar dimensions based upon the two active regions of Fig. 1.20
Ex situ annealing behavior for nominally identical QWs subjected to different in situ annealings from the growth of different cladding thicknesses. The thick cladding overannealed the QW, but the typical annealing behavior was recovered with a thinner cladding.
Variation of the optimal annealing temperature for GaInNAsSb QWs, as a function of the nitrogen content. Also shown is the QW mismatch determined with HRXRD.
Variation of the optimal annealing temperature for GaInNAsSb QWs, as functions of the indium content and antimony flux.
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