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Near 1 kW of continuous-wave output power has been obtained from a single 1-cm-wide diode-laser bar. Mounted on a water-cooled microchannel heat sink, the operating wavelength was near 940 nm (at ~400 W) and the measured thermal resistance was as low as 0.08degC/W. Maximum power conversion efficiencies (PCEs) of 70% and 67% were obtained from high-fill-factor bars with cavity lengths of 4 and 5 mm,...
We performed CW and time resolved photoluminescence (PL) measurements on on a series of conventional InGaI/InP MQW structures grown by low pressure metal organic vapor phase epitaxy (LP-MOVPE). Variation of sample temperature allows to distinct between regions with different well widths in CW experinments. The relative sizes of areas vith different well widths are determined. In time resolved PL experiments...
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