Seamless fiber-wireless bridge in the millimeter- and terahertz-wave bands

Atsushi Kanno, Pham Tien Dat, Norihiko Sekine, Iwao Hosako, Naokatsu Yamamoto, Yuki Yoshida, Ken Ichi Kitayama, Tetsuya Kawanishi

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Fiber-wireless transmission in the terahertz-wave band as well as in the millimeter-wave band is the key for a seamless integration of radio and optical networks in a physical layer. Advanced optical fiber communication technology enables a high precision direct waveform transfer between optical and radio domains. For realization of a seamless conversion, an optical-terahertz converter is configured with optical heterodyning for an optical-to-terahertz conversion. Analog optical modulation techniques by an input millimeter-wave signal and an intermediate frequency component after a frequency downconversion are utilized for a terahertz-to-optical conversion. A quadrature phase-shift keying signal transmission in an optical-fiber-to-radio-to-optical-fiber link (fiber-wireless bridge) is successfully demonstrated with the 90 and 300-GHz signals, simultaneously, using an optical frequency comb source. The possible transmission distance in severe weather conditions in these frequency bands is also discussed.

Original languageEnglish
Article number7435252
Pages (from-to)4794-4801
Number of pages8
JournalJournal of Lightwave Technology
Issue number20
Publication statusPublished - 2016 Oct 15


  • Fiber-wireless
  • millimeter-wave
  • optical frequency comb
  • radio over fiber
  • terahertz wave

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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