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中文摘要：
制备了InP基近红外波段量子线激光器，在激光器温度特性分析中，观察到了反常的特征温度分布曲线．随着热沉温度增加，在120－180K时，激光器阈值电流随温度升高出现下降趋势，即出现了负的特征温度．分析认为负特征温度的出现是由于随温度变化载流子再分布引起的．
英文摘要：
The long-wavelength laser on InP （001） is fabricated, the temperature dependence of threshold current density is investigated. The nomalous decrescence of threshold current density is observed with the increase of temperature, which leads to a negative characteristic temperature. The origin of this phenomenon is discussed. We attribute the anomalous temperature dependence of threshold current density to the carrier redistribution effect.
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