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>High‐temperature operation of high‐power InGaAlP visible light laser diodes with an In0.5+dgr;Ga0.5−dgr;P active layer
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High‐temperature operation of high‐power InGaAlP visible light laser diodes with an In0.5+dgr;Ga0.5−dgr;P active layer
High‐power and high‐reliable operation of transverse‐mode stabilized InGaAlP laser diodes has been achieved by a selectively buried ridge waveguide structure with a thin (0.02 mgr;m) active layer. A composition‐shifted In0.5+dgr;Ga0.5−dgr;P active layer was employed in order to improve the temperature characteristic. A maximum cw light output power of 54 mW was obtained for the laser with antireflection and high‐reflection coatings. A high‐power cw operation above 30 mW output power was maintained even at a 60 °C heat‐sink temperature. Stable cw operation exceeding 1000 h has been achieved for 20 mW output power at 50 °C.
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机译:横向&连字符模式稳定的InGaAlP激光二极管的高功率和高-连字符的可靠运行是通过具有薄(0.02 &mgr;m)有源层的选择性埋脊波导结构实现的。为了改善温度特性,采用组合物&连字符移位In0.5+&dgr;Ga0.5−&dgr;P活性层。采用抗反射和高连字符反射涂层的激光器获得了最大连续光输出功率为54 mW。即使在 60 °C 的散热和连字符温度下,也能保持高于 30 mW 输出功率的高功率连续波操作。在 50 °C 下,输出功率为 20 mW,可实现超过 1000 小时的稳定连续工作。
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