160 Gbit/s photonics wireless transmission in the 300-500 GHz band

Yu, Xianbin; Jia, Shi; Hu, Hao; Galili, Michael; Morioka, Toshio; Jepsen, Peter Uhd; Oxenløwe, Leif Katsuo

doi:10.1063/1.4960136

Cited by 129 publications

(45 citation statements)

References 18 publications

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“…The most fundamental and widely used devices are based on the optical-to-THz or THz-to-optical conversion using interaction media such as nonlinear optical materials, photoconductors, and photodiodes. High speed THz wireless communication systems in the frequency range of 300 GHz-500 GHz, at data rates of 60 Gbps, 160 Gbps and up to 260 Gbps have been demonstrated in the literature indicating the potential of this technology [101], [112], [113]. 1) Unitravelling Carrier Photodiode (UTC-PD): The evolution of photonics technology greatly increased the speed of signal processing systems.…”

Section: B Photonics Technologiesmentioning

confidence: 99%

See 1 more Smart Citation

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Elayan

Amin

Shihada

et al. 2020

IEEE Open J. Commun. Soc.

408

219

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Ultra-high bandwidth, negligible latency and seamless communication for devices and applications are envisioned as major milestones that will revolutionize the way by which societies create, distribute and consume information. The remarkable expansion of wireless data traffic that we are witnessing recently has advocated the investigation of suitable regimes in the radio spectrum to satisfy users' escalating requirements and allow the development and exploitation of both massive capacity and massive connectivity of heterogeneous infrastructures. To this end, the Terahertz (THz) frequency band (0.1-10 THz) has received noticeable attention in the research community as an ideal choice for scenarios involving high-speed transmission. Particularly, with the evolution of technologies and devices, advancements in THz communication is bridging the gap between the millimeter wave (mmW) and optical frequency ranges. Moreover, the IEEE 802.15 suite of standards has been issued to shape regulatory frameworks that will enable innovation and provide a complete solution that crosses between wired and wireless boundaries at 100 Gbps. Nonetheless, despite the expediting progress witnessed in THz wireless research, the THz band is still considered one of the least probed frequency bands. As such, in this work, we present an up-to-date review paper to analyze the fundamental elements and mechanisms associated with the THz system architecture. THz generation methods are first addressed by highlighting the recent progress in the electronics, photonics as well as plasmonics technology. To complement the devices, we introduce the recent channel models available for indoor, outdoor as well as nanoscale propagation at THz band frequencies. A comprehensive comparison is then presented between the THz wireless communication and its other contenders by treating in depth the limitations associated with each communication technology. In addition, several applications of THz wireless communication are discussed taking into account the various length scales at which such applications occur. Further, as standardization is a fundamental aspect in regulating wireless communication systems, we highlight the milestones achieved regarding THz standardization activities. Finally, a future outlook is provided by presenting and envisaging several potential use cases and attempts to guide the deployment of the THz frequency band and mitigate the challenges related to high frequency transmission. ). Fig. 1. Wireless Roadmap Outlook up to the year 2035.

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Section: B Photonics Technologiesmentioning

confidence: 99%

“…UTC-PDs with output powers of 148 µW at 457 GHz and 24 µW at 914 GHz have been approached [120]. In addition, a 160 Gbps THz wireless link has been achieved in the 300-500 GHz band using a single UTC-PD based transmitter as shown in [112].…”

Section: B Photonics Technologiesmentioning

confidence: 99%

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Elayan

Amin

Shihada

et al. 2020

IEEE Open J. Commun. Soc.

408

219

View full text Add to dashboard Cite

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“…45,46 For this reason, terahertz communications links can provide data rates of several tens of Gbps, and this has been confirmed by numerous practical experiments. 11,[47][48][49][50][51][52][53] However, due to the increasing free-space path loss at terahertz frequencies and above, terahertz links must waste as little power as possible in order to achieve adequate signal power over a useful propagation distance. For this reason, terahertz communications must minimize the amount of power that is projected into the directions in which it will not be received.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, highly directive beamforming is required, and this necessitates devices with large physical aperture. As the aperture of most terahertz sources is limited, a large aperture is typically achieved by means of lenses 52,53 or reflector dishes. 11 Flat-profile devices such as reflectarrays and transmitarrays present a compact alternative to such devices.…”

Section: Introductionmentioning

confidence: 99%

Tutorial: Terahertz beamforming, from concepts to realizations

et al. 2018

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The terahertz range possesses significant untapped potential for applications including high-volume wireless communications, noninvasive medical imaging, sensing, and safe security screening. However, due to the unique characteristics and constraints of terahertz waves, the vast majority of these applications are entirely dependent upon the availability of beam control techniques. Thus, the development of advanced terahertz-range beam control techniques yields a range of useful and unparalleled applications. This article provides an overview and tutorial on terahertz beam control. The underlying principles of wavefront engineering include array antenna theory and diffraction optics, which are drawn from the neighboring microwave and optical regimes, respectively. As both principles are applicable across the electromagnetic spectrum, they are reconciled in this overview. This provides a useful foundation for investigations into beam control in the terahertz range, which lies between microwaves and infrared light. Thereafter, noteworthy experimental demonstrations of beam control in the terahertz range are discussed, and these include geometric optics, phased array devices, leaky-wave antennas, reflectarrays, and transmitarrays. These techniques are compared and contrasted for their suitability in applications of terahertz waves.

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“…On the other hand, with the rapid development of the network and popularization of portable terminals, the miniaturization of the integrated devices is an irresistible trend. THz technologies are promising to accelerate the next generation of communications [5][6][7] due to the capabilities of high information capacity and micro-size [8,9]. To realize further integration, how to manipulate the electromagnetic (EM) waves in subwavelength scale is a principal issue.…”

Section: Introductionmentioning

confidence: 99%

Robust and broadband integrated terahertz coupler conducted with adiabatic following

et al. 2019

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As the key concept in fabricating integrated device, surface plasmon-polaritons (SPPs) have been widely employed to artificially manipulate the electromagnetic waves in metallic surfaces. However, due to the highly structure-dependent resonance of SPPs, it is challengeable to develop a fixed device which can function at wide band. Here, we propose a novel broadband and robust SPPs directional coupler based on the tri-layered curved waveguides working at terahertz (THz) frequencies, where the coupling of SPPs between the adjacent waveguides can be modeled with coupled mode theory. By introducing the stimulated raman adiabatic passage quantum control technique, we achieve the complete transfer of SPPs from the input to the output waveguides in the range of 0.9-1.3 THz, and even considering the propagation loss, the transfer rate is still above 70%. Furthermore, the performance of our device is eminently robust because of its insensitivity to the geometry of structure and the wavelength of SPPs. As a result, our device can tolerate defect induced by fabrication processing and manipulate THz waves at broadband. This finding provides a new theoretical guideline in promoting THz on-demand applications, which is of significance in developing integrated THz devices.

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160 Gbit/s photonics wireless transmission in the 300-500 GHz band

Cited by 129 publications

References 18 publications

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Tutorial: Terahertz beamforming, from concepts to realizations

Robust and broadband integrated terahertz coupler conducted with adiabatic following

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