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Schematic cross section (a) showing the structure of the QW laser and (b) the calculated energy band diagram of the diode under zero applied bias.
Measured emission spectra as a function of temperature. The inset shows the predicted emission wavelength as a function of temperature.
Typical characteristics measured as a function of temperature.
Threshold current densities , extracted from the data shown in Fig. 3 by a linear fit to the points above threshold, as a function of temperature. The two lines are fits to the data from and from , yielding values of 136 and , respectively.
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