Coherent Terahertz Wireless Signal Transmission Using Advanced Optical Fiber Communication Technology

Atsushi Kanno*, Toshiaki Kuri, Isao Morohashi, Iwao Hosako, Tetsuya Kawanishi, Yuki Yoshida, Ken ichi Kitayama

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


Coherent terahertz signal transmission with multilevel modulation and demodulation is demonstrated using an optical sub-harmonic IQ mixer (SHIQM), which consists of optical components in advanced optical fiber communication technologies. An optical-frequency-comb-employed signal generator is capable of vector modulation as well as frequency tunability. Digital signal processing (DSP) adopted from the recently developed optical digital coherent communication can easily demodulate multi-level modulated terahertz signals by using electrical heterodyning for intermediate-frequency (IF) down conversion. This technique is applicable for mobile backhauling in the next-generation mobile communication technology directly connected to an optical fiber network as a high-speed wireless transmission link.

Original languageEnglish
Pages (from-to)180-197
Number of pages18
JournalJournal of Infrared, Millimeter, and Terahertz Waves
Issue number2
Publication statusPublished - 2015 Feb
Externally publishedYes


  • Coherent communication
  • Optical frequency comb
  • Radio over fiber
  • Terahertz communication

ASJC Scopus subject areas

  • Radiation
  • Instrumentation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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