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A Novel System for Quasi-Continuous THz Signal Transmission and Reception
| Content Provider | MDPI |
|---|---|
| Author | Andrej, Sarjaš Pongrac, Blaž Gleich, Dušan |
| Copyright Year | 2022 |
| Description | This paper presents a novel system for generating and receiving quasi-continuous (QC) TeraHertz (THz) waves. A system design and theoretical foundation for QC-THz signal generation are presented. The proposed QC-THz system consists of commercially available photo-conductive antennas used for transmission and reception of THz waves and a custom-designed QC optical signal generator, which is based on a fast optical frequency sweep of a single telecom distributed-feedback laser diode and unbalanced optical fiber Michelson interferometer used for a high-frequency modulation. The theoretical model for the proposed system is presented and experimentally evaluated. The experimental results were compared to the state-of-the-art continuous-wave THz system. The comparison between the continuous-wave THz system and the proposed QC-THz system showed the ability to transmit and receive QC-THz waves up to 300 GHz. The upper-frequency limit is bounded by the length of the used Michelson interferometer. The presented design of THz signal generation has a potential for industrial application because it is cost-efficient and can be built using commercially available components. |
| Starting Page | 4448 |
| e-ISSN | 14248220 |
| DOI | 10.3390/s22124448 |
| Journal | Sensors |
| Issue Number | 12 |
| Volume Number | 22 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-06-12 |
| Access Restriction | Open |
| Subject Keyword | Sensors Industrial Engineering Quasi-continuous Terahertz Photoconductive Antenna Wave Emittance Wave Detection |
| Content Type | Text |
| Resource Type | Article |
