APL Photonics (Jun 2023)

60 Gbps real-time wireless communications at 300 GHz carrier using a Kerr microcomb-based source

  • Brendan M. Heffernan,
  • Yuma Kawamoto,
  • Keisuke Maekawa,
  • James Greenberg,
  • Rubab Amin,
  • Takashi Hori,
  • Tatsuya Tanigawa,
  • Tadao Nagatsuma,
  • Antoine Rolland

DOI
https://doi.org/10.1063/5.0146957
Journal volume & issue
Vol. 8, no. 6
pp. 066106 – 066106-7

Abstract

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Future wireless communication infrastructure will rely on terahertz systems that can support an increasing demand for large-bandwidth, ultra-fast wireless data transfer. In order to satisfy this demand, compact, low-power, and low noise sources of terahertz radiation are being developed. A promising route to achieving this goal is combining photonic-integrated optical frequency combs with fast photodiodes for difference frequency generation in the THz. Here, we demonstrate wireless communications using a 300 GHz carrier wave generated via photomixing of two optical tones originating from diode lasers that are injection locked to a dissipative Kerr soliton frequency microcomb. We achieve transfer rates of 80 Gbps using homodyne detection and 60 Gbps transmitting simultaneously both data and clock signals in a dual-path wireless link. This experimental demonstration paves a path toward low-noise and integrated photonic millimeter-wave transceivers for future wireless communication systems.