Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Generation of Coherent Sub-Terahertz Carrier with Phase Stabilization for Wireless Communications

  • Yoshimizu, Yasuyuki (Graduate School of Engineering Science, Osaka University) ;
  • Hisatake, Shintaro (Graduate School of Engineering Science, Osaka University) ;
  • Kuwano, Shigeru (NTT Access Network Service Systems Laboratories, NTT Corporation) ;
  • Terada, Jun (NTT Access Network Service Systems Laboratories, NTT Corporation) ;
  • Yoshimoto, Naoto (NTT Access Network Service Systems Laboratories, NTT Corporation) ;
  • Nagatsuma, Tadao (Graduate School of Engineering Science, Osaka University)
  • Received : 2013.07.01
  • Published : 2013.12.31
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Abstract

In this paper, we present a photonic approach for generating highly stable coherent sub-terahertz (THz) signals for wireless communications. As proof-of-concept we transmit data at 100 GHz carrier frequency using on-off keying modulation and heterodyne detection. The sub-THz carrier signals are generated by photo-mixing two optical carrier signals at different frequencies, extracted from an optical frequency comb. We introduce a novel system to stabilize the phase of the optical carrier signals. Error-free transmission is successfully achieved up to a bit rate of 8.5 Gbit/s at 100 GHz.

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References

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