Digital communication : optical vs. THz links

• Autorzy: Marczewski Jacek

Identyfikatory

DOI

10.24425/opelre.2020.134427

• Języki publikacji: EN

Abstrakty

EN

The paper presents a comprehensive look at the perspectives on the use of THz in digital communication systems. The publication aims to focus on arguments that justify a significant increase in the frequency of radio links and their integration with fibre-based networks. Comparison of THz links with their microwave and optical counterparts is discussed from basic physical limitations to technological constraints. Main attention is paid to the available channel capacity resulting from its bandwidth and signal-to-noise ratio. The short final discussion is about technology platforms that seem to be crucial to the availability of suitable THz sources. According to the author, the biggest advantage of using bands in the range of several hundred GHz for a digital data transmission is their use for mobile communication over short distances, as well as for broadband indoor links. However, these applications require a development of compact electronic THz sources with low noise and power reaching single watts. This is beyond the range of the most popular silicon-based technology platform, although a significant progress can be expected with the development of technologies based on wide bandgap semiconductors. Fibre optic connections remain the unquestioned leader in communication over long distances and permanent links.

Słowa kluczowe

EN

mobile communication; optical links; Shannon theorem; THz radiation; THz links

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2020
• Tom: Vol. 28, No. 3
• Strony: 176--181
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Marczewski Jacek

• Lukasiewicz Research Network, Institute of Electron Technology, 32/46 Lotnikow Ave., 02-668 Warsaw, Poland

• https://orcid.org/0000-0002-8484-3245

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).