Thermoelectric-cooled terahertz quantum cascade lasers

作者：Martin Alexander Kainz, M. P. Semtsiv, Georgios Tsianos, Sergii S. Kurlov, William Ted Masselink, Sebastian Schönhuber, Hermann Detz, Werner Schrenk, K. Unterrainer, G. Strasser, Aaron Maxwell Andrews · 发表于：Optics Express · 年份：2019 · DOI：10.1364/oe.27.020688 · 被引用次数：43 · 研究领域：Spectroscopy and Laser Applications、Atmospheric Ozone and Climate、Terahertz technology and applications

We demonstrate the first lasing emission of a thermo-electrically cooled terahertz quantum cascade laser (THz QCL). A high temperature three-well THz QCL emitting at 3.8 THz is mounted to a novel five-stage thermoelectric cooler reaching a temperature difference of ΔT = 124 K. The temperature and time-dependent laser performance is investigated and shows a peak pulse power of 4.4 mW and a peak average output power of 100 μW for steady-state operation.