Interband cascade laser arrays with watt-level continuous-wave optical power
Ruixuan Sun1, 2, Shuman Liu1, 2✉, Zheyu Song1, 2, Jinchuan Zhang1, 2, Ning Zhuo1, 2, Junqi Liu1, 2, Lijun Wang1, 2, Shenqiang Zhai1, 2, Yuan Li1, 2, and Fengqi Liu1, 2, 3