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In this work, the highly strained In0.39Ga0.61As-GaAs lasers grown by metal-organic vapor phase epitaxy were studied. The InGaAs lasers could emit at 1.22 mum under continuous-wave conditions, whereas the threshold current density (Jth) and transparency current density (Jtr) were 140 and 37.2 A/cm2, respectively. To the best of our knowledge, the Jtr was the lowest among the reported InGaAs lasers...
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