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A True Optoelectronic Spectrum Analyzer for Millimeter Waves With Hz Resolution

Fernandez Olvera, Anuar De Jesus ; Krause, Benedikt Leander ; Preu, Sascha (2021)
A True Optoelectronic Spectrum Analyzer for Millimeter Waves With Hz Resolution.
In: IEEE Access, 2021, 9
doi: 10.26083/tuprints-00019461
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Type of entry: Secondary publication
Title: A True Optoelectronic Spectrum Analyzer for Millimeter Waves With Hz Resolution
Language: English
Date: 23 September 2021
Place of Publication: Darmstadt
Year of primary publication: 2021
Journal or Publication Title: IEEE Access
Volume of the journal: 9
DOI: 10.26083/tuprints-00019461
Corresponding Links:
Origin: Secondary publication via sponsored Golden Open Access

We present an architecture for millimeter-wave spectrum analyzers with Hz resolution and precision based on heterodyne down-conversion using ErAs:InGaAs photoconductive mixers driven by a tunable ultra-narrow linewidth continuous-wave (CW) photonic local oscillator. Unlike previous optoelectronic or electronic architectures, there is no requirement for an external electronic spectrum analyzer or any frequency extenders, keeping the system less complex and less expensive. We demonstrate the architecture for a frequency range that surpasses the E-band range by 10 GHz, i.e. from 50 to 90 GHz, but it is easily extendable to frequencies beyond 300 GHz or to frequencies as low as 25 GHz. A minimum power of 300 fW at 72 GHz was detected when using a resolution bandwidth of 1 Hz.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-194619
Additional Information:

INDEX TERMS CW photoconductive detectors, ErAs:In(Al)GaAs photoconductors, photomixers, spectrum analyzer, millimeter waves.

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Terahertz Devices and Systems
Date Deposited: 23 Sep 2021 08:03
Last Modified: 06 Dec 2023 09:07
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19461
PPN: 494646462
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