Integrated silicon photonic crystals toward terahertz communications
| dc.contributor.author | Withayachumnankul, W. | |
| dc.contributor.author | Fujita, M. | |
| dc.contributor.author | Nagatsuma, T. | |
| dc.date.issued | 2018 | |
| dc.description | Published online: June 25, 2018 | |
| dc.description.abstract | The terahertz frequency range locates between 0.1 and 10 THz. This range accommodates atmospheric windows with staggering absolute bandwidth. It holds a potential for point-to-point wireless communications with an aggregate capacity reaching terabit per second in a range up to a kilometer. This unique capability is envisaged for backhauls between base stations and for local area networks. To this end, efficiency and compactness of the transceivers are crucial for successful large-scale adoption. However, stateof- the-art terahertz front ends are based on radio-frequency or photomixing technologies that are inefficient, bulky, or complicated. In principle, as a neighbor of the microwave and optics domains, the terahertz band can leverage technologies from both sides to overcome those challenges. Recently, low-loss integrated circuits based on photonic crystal waveguides are developed for routing terahertz waves. Here, a progress report on core components, including waveguides and diplexers, is presented. Additionally, the interfacing of the platform with electronic sources and detectors on one end, and with antennas for free-space coupling on the other end, is discussed. Currently, the platform can support terahertz communications at a data rate over 10 Gbit s⁻¹. Challenges and opportunities are discussed in the light of future development in this area. | |
| dc.description.statementofresponsibility | Withawat Withayachumnankul, Masayuki Fujita, and Tadao Nagatsuma | |
| dc.identifier.citation | Advanced Optical Materials, 2018; 6(16):1800401-1-1800401-7 | |
| dc.identifier.doi | 10.1002/adom.201800401 | |
| dc.identifier.issn | 2195-1071 | |
| dc.identifier.issn | 2195-1071 | |
| dc.identifier.orcid | Withayachumnankul, W. [0000-0003-1155-567X] | |
| dc.identifier.uri | http://hdl.handle.net/2440/114180 | |
| dc.language.iso | en | |
| dc.publisher | Wiley | |
| dc.relation.grant | http://purl.org/au-research/grants/arc/DP180103561 | |
| dc.rights | © 2018 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. | |
| dc.source.uri | https://doi.org/10.1002/adom.201800401 | |
| dc.subject | Antennas; diplexers; photonic crystal waveguides; terahertz; terahertz communications | |
| dc.title | Integrated silicon photonic crystals toward terahertz communications | |
| dc.type | Journal article | |
| pubs.publication-status | Published |
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