4.7 Article

TeraHertz Photonics for Wireless Communications

Journal

JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 33, Issue 3, Pages 579-587

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2014.2355137

Keywords

Broadband communication; microwave photonics; millimeter (mm)-wave generation; optical heterodyne; optical mixing; optical phase lock loops; photonic integrated circuits; semiconductor lasers

Funding

  1. UK Engineering and Physical Sciences Research Council under the Coherent TeraHertz Systems Program [EP/J017671/1]
  2. European Commission through the European project iPHOS [257539]
  3. EPSRC [EP/J017671/1] Funding Source: UKRI
  4. Engineering and Physical Sciences Research Council [EP/J017671/1] Funding Source: researchfish

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Optical fibre transmission has enabled greatly increased transmission rates with 10 Gb/s common in local area networks. End users find wireless access highly convenient for mobile communication. However, limited spectrum availability at microwave frequencies results in per-user transmission rates limited to much lower values, e.g., 500 Mb/s for 5-GHz band IEEE 802.11ac. Extending the high data-rate capacity of optical fiber transmission to wireless devices requires greatly increased carrier frequencies. This paper will describe how photonic techniques can enable ultrahigh capacity wireless data distribution and transmission using signals at millimeter-wave and TeraHertz (THz) frequencies.

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