Frequency comb measurements for 6G terahertz nano/microphotonics and metamaterials

Autor: Kang Guseon, Lee Younggeun, Kim Jaeyoon, Yang Dongwook, Nam Han Ku, Kim Shinhyung, Baek Soojeong, Yoon Hyosang, Lee Joohyung, Kim Teun-Teun, Kim Young-Jin
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Nanophotonics, Vol 13, Iss 7, Pp 983-1003 (2024)
Druh dokumentu: article
ISSN: 2192-8614
2023-0869
DOI: 10.1515/nanoph-2023-0869
Popis: Next-generation 6G communication holds the potential to revolutionize data transfer, enabling the realization of eXtended Reality (XR) with enhanced sensory experiences. To achieve this, advanced components such as high-performance intensity/phase modulators, waveguides, multiplexers, splitters, combiners, and filters operating in terahertz (THz) regime, specifically within the frequency range of 0.1–1 THz, are essential. However, existing microwave equipment and vector network analyzers designed for this frequency range suffer from limitations in resolution, stability, and accuracy when evaluating the intensity and phase responses of critical 6G THz devices. In this comprehensive review, we delve into the critical device requirements and emerging trends in next-generation 6G communication, essential performance evaluation parameters, comparisons between microwave and nano/microphotonic devices for testing, and the application of high-resolution THz sensors in 6G Internet-of-Things (IoT) scenarios. Notably, a frequency comb in the photonic regime emerges as the prime candidate for achieving precision evaluations of 6G networks and devices. Consequently, this review highlights the latest research in frequency comb measurements in the 6G THz frequency regime, with a particular emphasis on nano/microphotonic devices and metamaterials. The integration of frequency comb measurements into 6G and THz photonic devices and networks promises to accelerate the realization of high-density next-generation 6G communication.
Databáze: Directory of Open Access Journals