Quadrature-Phase-Shift-Keying Radio-over-Fiber Transmission for Coherent Optical and Radio Seamless Networks
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概要
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We propose a coherent optical and radio seamless network concept that allows broadband access without deployment of additional optical fibers within an optical fiber dead zone while enhancing network resilience to disasters. Recently developed radio-over-fiber (RoF) and digital coherent detection technologies can seamlessly convert between optical and radio signals. A millimeter-wave radio with a capacity greater than 10Gb/s and high-speed digital signal processing is feasible for this purpose. We provide a preliminary demonstration of a high-speed, W-band (75-110GHz) radio that is seamlessly connected to an optical RoF transmitter using a highly accurate optical modulation technique to stabilize the center frequencies of radio signals. Using a W-band digital receiver with a sensitivity of -37dBm, we successfully transmitted an 18.6Gb/s quadrature-phase-shift-keying signal through both air and an optical fiber.
著者
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Kitayama Ken-ichi
Graduate School Of Engineering Osaka University
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Yoshida Yuki
Graduate School Of Engineering Osaka University
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TIEN DAT
Photonic Network Research Institute, National Institute of Information and Communications Technology
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YASUMURA Yoshihiro
Graduate School of Engineering, Osaka University
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Kuri Toshiaki
Photonic Network Research Institute National Institute of Information and Communications Technology (NICT)
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Kawanishi Tetsuya
Photonic Network Research Institute National Institute of Information and Communications Technology (NICT)
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HOSAKO Iwao
Advanced ICT Research Institute, National Institute of Information and Communications Technology
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KANNO Atsushi
Photonic Network Research Institute, National Institute of Information and Communications Technology
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