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(Color online) curve of the InGaN blue LD measured under cw operation condition when temperature varies from . The lasing spectrum at and is shown at the inset.
Threshold current as a function of temperature for five LD samples. The curve with the lowest threshold corresponds to the sample in Fig. 1.
(Color online) Distribution of hole density (a) and optical gain (b) at two quantum wells when temperature varies from .
(a) Forward voltage vs current under cw operation condition when temperature varies from . (b) Wall plug efficiency as a function of temperature when the LD output power is .
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