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(Color online) Temperature-dependent cw light output vs current for a laser before burn in.
cw output spectrum with drive current at acquired after the burn in.
Comparison between cw light output and current at for the same device before (solid) and after (dashed line) burn in. The inset shows the output power during cw burn in at at constant current of . The solid line with circles indicates the current-voltage dependence.
(Color online) cw net modal gain spectra at (bottom) and (top). The ASE spectra were acquired at intervals.
(Color online) Dependence of peak material gain (filled symbols) and peak gain wavelength (open symbols) on injection current at (squares) and (circles). The solid lines are guides for the eyes, based on the best fits assuming a sigmoidal dependence.
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