Ultrahigh-Bitrate Wireless Data Communications via THz-Links; Possibilities and Challenges

Schneider, Thomas

doi:10.1007/s10762-014-0100-1

Cited by 30 publications

(8 citation statements)

References 48 publications

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“…Compared with infrared and microwaves, THz wave combines the merits of good penetrating capability and high spatial resolution, which accordingly offers a promising alternative solution for remote sensing [2] applications. In addition, abundant bandwidth resource at THz band is beneficial to facilitating the implement of ultrahigh bitrate wireless communication link [3] for accommodating the drastically increasing demand in various electronics scenarios.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a Broadband High-Temperature Superconducting Terahertz Mixer Operating at Temperatures Between 40 and 77 K

Gao

Zhang

et al. 2017

J Infrared Milli Terahz Waves

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This paper presents a systematic investigation of a broadband thin-film antenna-coupled high-temperature superconducting (HTS) terahertz (THz) harmonic mixer at relatively high operating temperature from 40 to 77 K. The mixer device chip was fabricated using the CSIRO established step-edge YBa2Cu3O7-x (YBCO) Josephson junction technology, packaged in a well-designed module and cooled in a temperature adjustable cryocooler. Detailed experimental characterizations were carried out for the broadband HTS mixer at both the 200 GHz and 600 GHz bands in harmonic mixing mode. The DC current-voltage characteristics (IVCs), bias current condition, local oscillator (LO) power requirement, frequency response as well as conversion efficiency under different bath temperatures were thoroughly investigated for demonstrating the frequency down-conversion performance.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a Broadband High-Temperature Superconducting Terahertz Mixer Operating at Temperatures Between 40 and 77 K

Gao

Zhang

et al. 2017

J Infrared Milli Terahz Waves

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“…Clearly in the case of ground to space links, the temperature, atmospheric pressure, and water vapor content all vary with altitude resulting in an altitude dependent atmospheric attenuation as well as refractive index for the THz range [4,5,11]. Some recent examples of outdoor line-of-sight channel modelling can be found in Refs [1,12,13]. In this section, we will focus on the effect of the intervening atmospheric medium under three conditions (a) clear weather in which the attenuation of water vapor and gaseous oxygen dominate (b) airborne particulates such as dust, fog, clouds, and rain (c) localized inhomogeneities in the refractive index of the atmosphere which lead to scintillation effects.…”

Section: Channel Modellingmentioning

confidence: 99%

Review of weather impact on outdoor terahertz wireless communication links

Federici

Moeller

2016

Nano Communication Networks

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A BST R A C T As the demand for higher wireless data rates continues to increase, there has been more interest in extending the carrier frequency of wireless links from the millimeter wave range into the terahertz (THz) range. For long distance wireless communications, THz links can suffer significant signal loss due to atmospheric weather effects. Obviously, for evaluating wireless system link budgets, it will be important to estimate the weather impact on high capacity data links and compare the performance degradation of THz links to that of the competing approach of free-space optical wireless. This paper reviews the impact of weather on THz wireless links and emphasizes THz attenuation and channel impairments caused by atmospheric gases (in particular water vapor), airborne particulates (such as dust, fog, clouds, and rain), refractive index inhomogeneities which are driven by air turbulence, and their associated scintillations.

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“…These disadvantages can be overcome by photonic approaches, resulting in stable, high-performance microwave sources and signal processing. 80 If two lines of the frequency comb are extracted and heterodyned in an appropriate photomixer, the generated mm-or THz-wave can achieve very high quality. In between, experiments have shown a measured phase noise of < − 130 dBc∕Hz at 10 kHz offset and a linewidth of 1 Hz.…”

Section: Frequency Comb Processingmentioning

confidence: 99%

Stimulated Brillouin scattering gain bandwidth reduction and applications in microwave photonics and optical signal processing

Preußler

Schneider

2015

Opt. Eng

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Stimulated Brillouin scattering (SBS) is one of the most dominant nonlinear effects in standard singlemode fibers and its unique spectral characteristics, especially the narrow bandwidth, enable many different applications. Most of the applications would benefit from a narrower bandwidth. Different methods for the bandwidth reduction of SBS in optical fibers are presented and discussed. A bandwidth reduction down to 17% of the natural gain can be achieved by the superposition of the gain with two losses or the utilization of a multistage system. Furthermore, applications in the field of microwave photonics and optical signal processing like highresolution spectroscopy of communication signals, the storage of optical data packets as well as the processing of frequency combs including generation of millimeter waves and ideal sinc-shaped Nyquist pulses are presented.

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Ultrahigh-Bitrate Wireless Data Communications via THz-Links; Possibilities and Challenges

Cited by 30 publications

References 48 publications

Experimental Investigation of a Broadband High-Temperature Superconducting Terahertz Mixer Operating at Temperatures Between 40 and 77 K

Experimental Investigation of a Broadband High-Temperature Superconducting Terahertz Mixer Operating at Temperatures Between 40 and 77 K

Review of weather impact on outdoor terahertz wireless communication links

Stimulated Brillouin scattering gain bandwidth reduction and applications in microwave photonics and optical signal processing

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