THz-TDS with a GHz single-cavity dual-comb laser

被引：0
|
作者：
Pupeikis, J. [1 ]
Wittenberg, B. [1 ]
Phillips, C. R. [1 ]
Camenzind, S. L. [1 ]
Liebermeister, L. [2 ]
Kohlhaas, R. B. [2 ]
Globisch, B. [2 ]
Keller, U. [1 ]
机构：
[1] Swiss Fed Inst Technol, Dept Phys, Zurich, Switzerland
[2] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Fraunhofer Inst Telecommun, Berlin, Germany
来源：
2023 48TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, IRMMW-THZ | 2023年
关键词：
D O I：
10.1109/IRMMW-THz57677.2023.10299270
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrate THz time-domain spectroscopy (TDS) with a single-cavity dual-comb laser operated at 1 GHz repetition rate. The compact single laser emits two pulse trains with slightly different repetition rates. Due to this condition very rapid and precise optical delay sweeps between two pulse trains are obtained. We show THz-TDS measurements with 1 kHz and 22 kHz delay-sweep rates. Further data processing allows to perform triggerless signal averaging leading to 55 dB dynamic range in the THz spectrum with 2 GHz spectral resolution for a total measurement time of 2 seconds.
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页数：2
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