光电子学
激光阈值
激光器
材料科学
波导管
量子级联激光器
光子集成电路
级联
光子学
红外线的
半导体激光器理论
光学
半导体
物理
太赫兹辐射
波长
化学
色谱法
作者
Ruijun Wang,Philipp Täschler,Zhixin Wang,E. Gini,Mattias Beck,Jérôme Faist
出处
期刊:ACS Photonics
[American Chemical Society]
日期:2022-01-28
卷期号:9 (2): 426-431
被引量:9
标识
DOI:10.1021/acsphotonics.1c01767
摘要
Mid-infrared semiconductor lasers in photonic integrated circuits are of considerable interest for a variety of industrial, environmental, and medical applications. However, photonic integration technologies in the mid-infrared lag far behind the near-infrared range. Here we present the monolithic integration of mid-infrared quantum cascade lasers with low-loss passive waveguides via butt-coupling. The passive waveguide losses are experimentally evaluated to be only 1.2 ± 0.3 dB/cm, with negligible butt-coupling losses. We demonstrate continuous-wave lasing at room temperature of these active-to-passive waveguide coupled devices. Moreover, we report a frequency comb operation paving the way toward on-chip, mid-infrared, dual-comb sensors.
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