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A Photonic Spectrum Analyzer for Waveguide-Coupled Sources in the Terahertz Range

Krause, Benedikt Leander ; Mukherjee, Amlan kusum ; Preu, Sascha (2023):
A Photonic Spectrum Analyzer for Waveguide-Coupled Sources in the Terahertz Range. (Publisher's Version)
In: IEEE Journal of Selected Topics in Quantum Electronics, 29 (5), IEEE, ISSN 1077-260X, e-ISSN 1558-4542,
DOI: 10.26083/tuprints-00023243,

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Item Type: Article
Origin: Secondary publication service
Status: Publisher's Version
Title: A Photonic Spectrum Analyzer for Waveguide-Coupled Sources in the Terahertz Range
Language: English

Signals in the terahertz range are mainly wireless, waveguide-bound or on-chip signals. To measure their spectral power, linewidth and harmonics, usually spectrum analyzers are used. Here we present a photonic spectrum analyzer for waveguide-bound signals for the frequency range from 450 GHz to 1.05 THz with the possibility to extend its operation to on-chip signals. Therefore, a photonically generated local oscillator frequency is used to downconvert the signal under test within a photoconductor. A Vivaldi antenna feeds the signal from a dielectric waveguide to the photoconductor. This allows the measurement of any signal that can be transported via a dielectric waveguide. We show details on the transition from a rectangular metallic hollow waveguide to a dielectric waveguide and spectral measurements of a rectangular metallic hollow waveguide source. The same transition can also be used to attach metallic waveguide-coupled ground-source-ground probes in order to characterize on-chip sources.

Journal or Publication Title: IEEE Journal of Selected Topics in Quantum Electronics
Volume of the journal: 29
Issue Number: 5
Place of Publication: Darmstadt
Publisher: IEEE
Collation: 4 ungezählte Seiten
Uncontrolled Keywords: Photomixer, photonic local oscillator, spectrum analyzer, dielectric waveguide, dielectric rod waveguide antenna, waveguide, terahertz spectrum, Silicon, Frequency measurement, Waveguide transitions, Photonics, Dielectrics, Principal component analysis, Antenna measurements
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Terahertz Devices and Systems
Date Deposited: 16 Feb 2023 13:03
Last Modified: 25 May 2023 06:25
DOI: 10.26083/tuprints-00023243
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-232439
Identification Number: 8500204
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/23243
PPN: 50793685X
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