Thermoelectric-cooled terahertz quantum cascade lasers | Zendy

Martin A. Kainz | Zendy; M. P. Semtsiv | Zendy; G. Tsianos | Zendy; Sergii Kurlov | Zendy; W. T. Masselink | Zendy; Sebastian Schönhuber | Zendy; Hermann Detz | Zendy; W. Schrenk | Zendy; K. Unterrainer | Zendy; G. Strasser | Zendy; A. M. Andrews | Zendy

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Thermoelectric-cooled terahertz quantum cascade lasers

Author(s) -

Martin A. Kainz,

M. P. Semtsiv,

G. Tsianos,

Sergii Kurlov,

W. T. Masselink,

Sebastian Schönhuber,

Hermann Detz,

W. Schrenk,

K. Unterrainer,

G. Strasser,

A. M. Andrews

Publication year - 2019

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.020688

Subject(s) - terahertz radiation , laser , quantum cascade laser , materials science , cascade , lasing threshold , optoelectronics , thermoelectric cooling , optics , photomixing , thermoelectric effect , terahertz spectroscopy and technology , far infrared laser , physics , terahertz metamaterials , chemistry , chromatography , thermodynamics

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.

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