| 1. |
- Liu, Kexin, et al.
(author)
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100 Gbit/s THz Photonic Wireless Transmission in the 350-GHz Band With Extended Reach
- 2018
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In: IEEE Photonics Technology Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 1041-1135 .- 1941-0174. ; 30:11, s. 1064-1067
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Journal article (peer-reviewed)abstract
- In this letter, we experimentally demonstrate terahertz (THz) photonic wireless transmission of high-speed quadrature-phase-shift-keying (QPSK) and 16 quadrature amplitude modulation (16-QAM) signals in the 350-GHz band, with an effort to extend the wireless reach of ultrafast 100 Gbit/s. In the experiment, a narrowband unitraveling-carrier photodiode (UTC-PD) is used for heterodyne generation of THz communication signals, which is transparent to optical modulation formats. Experimental results show that 30 GBd/s QPSK (60 Gbit/s) and 25 GBd/s 16-QAM signals (100 Gbit/s) are successfully transmitted over a 350-GHz wireless link with an extended distance of 2 m. This enhancement is enabled by combining the techniques of employing cutting-edge narrowband UTC-PD as the photomixing THz emitter, spectrally efficient modulation format and advanced digital signal processing algorithms. The achievement makes 100 Gbit/s THz wireless communication systems promising for future smart wireless services.
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| 2. |
- Liu, Kexin, et al.
(author)
-
Enhanced Accessibility of 350 GHz 100 Gbit/s 16-QAM Photonic Wireless Link
- 2018
-
In: Proceedings 11th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Vol 1. - : Institute of Electrical and Electronics Engineers (IEEE).
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Conference paper (peer-reviewed)abstract
- We experimentally demonstrate an ultrafast terahertz (THz) photonic wireless communication link in the 350 GHz band with up to 100 Gbit/s data rate, with an emphasis on extending its wireless reach. By combining the techniques of using a cutting-edge narrow-band uni-traveling-carrier photodiode (UTC-PD) as the THz photo-mixing emitter, spectrally efficient modulation formats and advanced digital signal processing (DSP) algorithms, we successfully transmit 25 GBaud/s 16-quadrature amplitude modulation (16-QAM) signals (overall 100 Gbit/s data rate) over a 350 GHz wireless link with an extended distance of 2 m. This achievement pushes the accessibility of ultrafast 100 Gbit/s wireless communication beyond the state-of-the-art, and makes 100 Gbit/s ultrafast THz wireless communication systems promising for future smart high speed wireless access services.
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