A 300-GHz Wireless Link Employing a Photonic Transmitter and an Active Electronic Receiver With a Transmission Bandwidth of 54 GHz

Dan, Iulia; Szriftgiser, Pascal; Peytavit, E.; Lampin, Jean‐François; Zégaoui, M.; Zaknoune, M.; Ducournau, Guillaume; Kallfass, Ingmar

doi:10.1109/tthz.2020.2977331

Cited by 29 publications

(9 citation statements)

References 22 publications

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“…Data rates demonstrated with various device technologies in the last decade. (Photonic Tx [1]- [16], III/V HBT/HEMT [17]- [25], SiGe devices [26]- [30], CMOS [31]- [49]).…”

Section: Introductionmentioning

confidence: 99%

Terahertz Communications: Challenges in the Next Decade

Song

Lee

2022

IEEE Trans. THz Sci. Technol.

150

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Thanks to the abrupt advances in semiconductor technologies, particularly in terms of the operating frequency, the last decade has seen various efforts and trials in attempts to achieve high-throughput wireless communications at terahertz (THz) frequencies. Through the use of several potential device technologies, not only III-V heterojunction bipolar and high-electron-mobility transistors but also silicon complementary metal-oxide-semiconductors and photonic technologies, high data rates of 100 Gbps or more have been successfully demonstrated. Meanwhile, the next generation of wireless communications systems, so called 6G, is already being discussed in research communities worldwide. A terabit per second peak data rate is envisioned, which essentially requires huge spectral resources. The recent considerable attention to 6G communications is implicitly focused on THz communications but is more than a technical curiosity unlike in the past. In this article, we briefly review the progress of THz communications made in the last decade and discuss some of the most challenging issues that need to be overcome for future wireless systems at THz frequencies, including not only the 6G network but also short-range connectivity and fixed wireless links.

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“…Data rates demonstrated with various device technologies in the last decade. (Photonic Tx [1]- [16], III/V HBT/HEMT [17]- [25], SiGe devices [26]- [30], CMOS [31]- [49]).…”

Section: Introductionmentioning

confidence: 99%

Terahertz Communications: Challenges in the Next Decade

Song

Lee

2022

IEEE Trans. THz Sci. Technol.

150

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“…In recent years, with the maturity and even commercial availability of fast-response uni-traveling carrier photodiode (UTC-PD) [40], [41], an increasing number of transmission demonstrations with advanced modulation formats are performed in higher frequency bands, e.g., above 200 GHz [42]- [48]. A 100 Gb/s multicarrier signal transmission was reported in the 200 GHz band with a gain-switched laser comb source [42].…”

Section: ) Photonics-assisted Approachmentioning

confidence: 99%

Bridging the Terahertz Gap: Photonics-Assisted Free-Space Communications From the Submillimeter-Wave to the Mid-Infrared

Pang

Ozoliņš

Jia

et al. 2022

J. Lightwave Technol.

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Since about one and half centuries ago, at the dawn of modern communications, the radio and the optics have been two separate electromagnetic spectrum regions to carry data. Differentiated by their generation/detection methods and propagation properties, the two paths have evolved almost independently until today. The optical technologies dominate the long-distance and high-speed terrestrial wireline communications through fiber-optic telecom systems, whereas the radio technologies have mainly dominated the short-to medium-range wireless scenarios. Now, these two separate counterparts are both facing a sign of saturation in their respective roadmap horizons, particularly in the segment of free-space communications. The optical technologies are extending into the mid-wave and longwave infrared (MWIR and LWIR) regimes to achieve better propagation performance through the dynamic atmospheric channels. Radio technologies strive for higher frequencies like the millimeter-wave (MMW) and sub-terahertz (sub-THz) to gain broader bandwidth. The boundary between the two is becoming blurred and intercrossed. During the past few years, we witnessed technological breakthroughs in free-space transmission supporting very high data rates, many achieved with the assistance of photonics. This paper focuses on such photonics-assisted freespace communication technologies in both the lower and upper sides of the THz gap and provides a detailed review of recent research and development activities on some of the key enabling technologies. Our recent experimental demonstrations of highspeed free-space transmissions in both frequency regions are also presented as examples to show the system requirements for device characteristics and digital signal processing (DSP) performance.

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“…Hence the block RAM should also adopt TMR for mitigating the impact of SEU [219]. In a nutshell, the combination of partial TMR and periodical refreshing should be adopted for ensuring reliable [191].…”

Section: Space-based Laser Communicationsmentioning

confidence: 99%