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IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543

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Single-channel 240-Gbit/s sub-THz wireless communications using
ultra-low phase noise receiver
Keisuke Maekawa, Tomoya Nakashita, Toki Yoshioka, Takashi Hori, 
Antoine Rolland, Tadao Nagatsuma
Author information

  * Keisuke Maekawa

    Graduate School of Engineering Science, Osaka University

  * Tomoya Nakashita

    Graduate School of Engineering Science, Osaka University

  * Toki Yoshioka

    Graduate School of Engineering Science, Osaka University

  * Takashi Hori

    IMRA America Inc., Japanese Branch Office

  * Antoine Rolland

    IMRA America Inc., Boulder Research Labs

  * Tadao Nagatsuma

    Graduate School of Engineering Science, Osaka University

Corresponding author

ORCID
Keywords: sub-THz, laser, photodiode, receiver, transmitter, phase
noise
JOURNAL FREE ACCESS Advance online publication

Article ID: 20.20230584

DOI https://doi.org/10.1587/elex.20.20230584
Details

  * Published: 2023 Received: December 03, 2023 Released on J-STAGE:
    - Accepted: December 18, 2023 Advance online publication:
    December 25, 2023 Revised: -

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Abstract

We present a sub-terahertz (THz) wireless link using photonics-based
ultra-low phase noise transmitter and receiver. The maximum data rate
achieved below hard-decision forward error correction (HD-FEC)
threshold by using on-line signal processing was 240 Gbit/s with 64
quadrature amplitude modulation (64QAM) at a single carrier frequency
of 275 GHz. We also demonstrate successful 20-m transmission at a
data rate of over-200 Gbit/s data rate. This is the highest
single-channel performance ever reported with sub-THz wireless
communications to the best of our knowledge.

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(c) 2023 by The Institute of Electronics, Information and Communication
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