8 Gbit/s wireless data transmission at 250 GHz

Song, Ho-Jin; Ajito, Katsuhiro; Hirata, Akihiko; Wakatsuki, A.; Muramoto, Y.; Furuta, Tadaomi; Kukutsu, Naoya; Nagatsuma, Tadao; Kado, Yuichi

doi:10.1049/el.2009.2186

Cited by 86 publications

(32 citation statements)

References 4 publications

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“…Recent results for THz wireless links employing photonic carrier generation at frequencies ranging from 200 GHz to 400 GHz have indeed demonstrated the possibility of transmitting wireless data at more than 1 Gb/s. Above 250 GHz, detection has been limited to incoherent envelope detection using Schottky barrier diode (SBD) detectors [50][51][52], but the demonstration of data transmission at up to 28 Gb/s [52] clearly shows the potential for high bandwidth wireless transmission at these carrier frequencies, although, due to transmission impairments and the low signal powers available, a compromise will need to be found between carrier frequency and spectral efficiency.…”

Section: Demonstrationmentioning

confidence: 99%

Coherent terahertz photonics

Seeds¹,

Fice²,

Bałakier³

et al. 2013

Opt. Express

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Abstract:We present a review of recent developments in THz coherent systems based on photonic local oscillators. We show that such techniques can enable the creation of highly coherent, thus highly sensitive, systems for frequencies ranging from 100 GHz to 5 THz, within an energy efficient integrated platform. We suggest that such systems could enable the THz spectrum to realize its full applications potential. To demonstrate how photonics-enabled THz systems can be realized, we review the performance of key components, show recent demonstrations of integrated platforms, and give examples of applications. References and links1. A. G. Davies and E. H. Linfield, eds., "Special Supplement: THz Technology," Electron. Lett. 46(26), (2010). 2. S. J. Savory, "Digital filters for coherent optical receivers," Opt. Express 16(2), 804-817 (2008). 3. H. Eisele, "480GHz oscillator with an InP Gunn device," Electron. Lett. 46(6), 422-423 (2010). 4. L. Moeller, J. Federici, and K. Su, "THz wireless communications: 2.5 Gb/s error-free transmission at 625 GHz using a narrow-bandwidth 1 mW THz source," XXXth URSI General Assembly and Scientific Symposium (2011). 5. C. C. Renaud, M. Robertson, D. Rogers, R. Firth, P. J. Cannard, R. Moore, and A. J. Seeds, "A high responsivity, broadband waveguide uni-travelling carrier photodiode," Proc. SPIE 61940, 61940C, 61940C-8 (2006

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Section: Demonstrationmentioning

confidence: 99%

Coherent terahertz photonics

Seeds¹,

Fice²,

Bałakier³

et al. 2013

Opt. Express

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“…Оценки [9][10][11][12] по-казывают, что скорость передачи информации в те-рагерцевой линии передачи может достигать сотен и тысяч гигабит. Проводятся демонстрационные эксперименты по передаче информации по эфиру [13,14], которые показывают принципиальную воз-можность осуществления в настоящее время таких линий передачи информации на Земле. Проблема распространения терагерцевого излучения заклю-чается в том, что в этом диапазоне находятся вра-щательные и колебательные степени свободы мо-лекул, в особенности воды.…”

Section: Introductionunclassified

Prospects of Terahertz Frequencies Application

Ermolaev¹,

Talanov²,

Romanyuk³

2017

Rocket-Space Device Engineering and Information Systems

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Аннотация. Рассматривается возможный облик космической систем для работы в терагерцевом диапазоне частот (0,1-10 ТГц). Приводится конструкция и выбор антенн, чувствительных элементов и излучателей, перспективных для применения в кос-мической связи на терагерцевых частотах. В качестве приемной антенны взят массив (квадрат со стороной 1 м) из рупорных антенн с входным диаметром 1 см с быстрым твердотельным детектором, а в качестве передающей антенны принята па-раболическая антенна с диаметром 10 см. Рассчитывается необходимая мощность передатчика для дальностей связи 1000, 4000, 20 000 и 40 000 км. Проводится оценка затухания сигнала в атмосфере за счет влаги, которая является основным ис-точником поглощения терагерцевого излучения. Данное затухание составляет величину порядка 20 дБ. Однако выбранная конструкция антенн в терагерцевом диапазоне частот позволяет компенсировать сильное затухание как атмосферы, так и сво-бодного пространства. Также одним из преимуществ терагерцевого диапазона станет возможность создания узких диаграмм направленности излучения, что повышает эффективность использования спектра. Для космической связи борт-борт мощности современных источников терагерцевого диапазона достаточно. Космическая связь земля-борт возможна с низкоорбитальными космическими аппаратам, а для высокоорбитальных космических аппаратов можно использовать импульсный режим передачи данных. Abstract. The article considers the possible concept of space systems capable of operating in the terahertz frequency range (0,1-10 THz). The design and selection of antennas, sensors and emitters are revealed for applications in space communications at terahertz frequencies. An array (a square of 1 m side) of horn antennas with an output diameter of 1 cm and a fast solid-state detector was considered as the receiving antenna, and a parabolic antenna with a diameter of 10 cm was taken as the transmitting antenna. The required transmitter power for the communication ranges of 1000, 4000, 20 000 and 40 000 km has been calculated. An atmospheric attenuation of the signal due to the moisture, which is the main source of absorption of the terahertz radiation, is evaluated. This attenuation is about 20 dB. However, the selected design of the terahertz frequency range antennas can compensate for strong attenuation both in the atmosphere and in empty space. Moreover, one of the benefits of the terahertz frequency range is an ability to create a narrow radiation pattern that increases the efficiency of spectrum application. The article shows that the power of modern sources of terahertz is enough for spacecraft-to-spacecraft communication. Earth-to-spacecraft communication is possible with low-orbit spacecraft; for high-orbit spacecraft, the pulse mode of data transmission can be used.

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“…Particularly, above 275 GHz, there is a possibility to employ extremely large bandwidths for "radio" communications, since these frequency bands have not yet been allocated at specific active services, and standardization efforts have been becoming very active [1], [7]. Figure 1 summarizes experimentally achieved data rates of over 1 Gbit/s by transmission experiments with over-100-GHz carrier frequencies at 100-150 GHz [8]- [14], 200-250 GHz [15]- [21], 300-350 GHz [22]- [31], 400-450 GHz [23], [32], 500-700 GHz [27], [33]- [35]. Data points with triangles are demonstrations using electronicsbased transmitter, while data points with circles are achieved by photonics-based ones.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress and Future Prospect of Photonics-Enabled Terahertz Communications Research

Nagatsuma

Carpintero

2015

IEICE Trans. Electron.

121

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SUMMARYThis paper reviews a recent progress in terahertz wireless communications enabled by photonics technologies. After briefly summarizing transceiver configurations with electronics and photonics technologies, photonics-based approaches to achieving over 100-Gbit/s data rates are discussed. Then, some of our updated results on real-time wireless transmission experiments using discrete components are shown at data rates up to 50 Gbit/s. Finally, integration technologies are described by demonstrating latest advances in integrated optical sources and transmitters.

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8 Gbit/s wireless data transmission at 250 GHz

Cited by 86 publications

References 4 publications

Coherent terahertz photonics

Coherent terahertz photonics

Prospects of Terahertz Frequencies Application

Recent Progress and Future Prospect of Photonics-Enabled Terahertz Communications Research

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