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Frequency Division Multiplexing of Terahertz Waves Realized by Diffractive Optical Elements

التفاصيل البيبلوغرافية
العنوان: Frequency Division Multiplexing of Terahertz Waves Realized by Diffractive Optical Elements
المؤلفون: Paweł Komorowski, Patrycja Czerwińska, Mateusz Kaluza, Mateusz Surma, Przemysław Zagrajek, Artur Sobczyk, Wiesław Ciurapiński, Ryszard Piramidowicz, Agnieszka Siemion
المصدر: Applied Sciences, Vol 11, Iss 14, p 6246 (2021)
بيانات النشر: MDPI AG, 2021.
سنة النشر: 2021
المجموعة: LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Biology (General)
LCC:Physics
LCC:Chemistry
مصطلحات موضوعية: diffractive optical elements, THz, 3D printing, multiplexing, frequency division multiplexing, telecommunication, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
الوصف: Recently, one of the most commonly discussed applications of terahertz radiation is wireless telecommunication. It is believed that the future 6G systems will utilize this frequency range. Although the exact technology of future telecommunication systems is not yet known, it is certain that methods for increasing their bandwidth should be investigated in advance. In this paper, we present the diffractive optical elements for the frequency division multiplexing of terahertz waves. The structures have been designed as a combination of a binary phase grating and a converging diffractive lens. The grating allows for differentiating the frequencies, while the lens assures separation and focusing at the finite distance. Designed structures have been manufactured from polyamide PA12 using the SLS 3D printer and verified experimentally. Simulations and experimental results are shown for different focal lengths. Moreover, parallel data transmission is shown for two channels of different carrier frequencies propagating in the same optical path. The designed structure allowed for detecting both signals independently without observable crosstalk. The proposed diffractive elements can work in a wide range of terahertz and sub-terahertz frequencies, depending on the design assumptions. Therefore, they can be considered as an appealing solution, regardless of the band finally used by the future telecommunication systems.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2076-3417
Relation: https://www.mdpi.com/2076-3417/11/14/6246; https://doaj.org/toc/2076-3417
DOI: 10.3390/app11146246
URL الوصول: https://doaj.org/article/c8ac399c3d224b77b523e62ea7bc8324
رقم الأكسشن: edsdoj.8ac399c3d224b77b523e62ea7bc8324
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20763417
DOI:10.3390/app11146246