Presentation 2022-11-10
Remotely phase control of microwave signals using semiconductor optical amplifiers and optical beat
Shunya Hayashi, Tomoyuki Uehara, Kenichiro Tsuji,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Next-generation access networks are expected to use high-frequency radio signals with high attenuation, requiring the installation of a high-density and large number of array antennas capable of beamforming. The optical beat method, which enables easy generation of high-frequency waves and remote phase control by interference between optical fiber radio and two light waves, is attracting attention as a low-power and simple way to configure such networks, but it is problematic in terms of compensation of wavelength dispersion and use of expensive wavelength-tunable light sources. In this study, we propose a new directivity control system that solves the above problems, in which the phase difference between two lightwaves used in the optical beat method is remotely and collectively controlled from the control station side by mutual phase modulation of a semiconductor optical amplifier installed at the antenna side, and report the verification results. Translated with (free version)
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Radio over fiber / Optical beat / Photonic generation / Semiconductor optical amplifier / Beam forming
Paper # OFT2022-38
Date of Issue 2022-11-03 (OFT)

Conference Information
Committee ITE-BCT / OCS / IEE-CMN / OFT
Conference Date 2022/11/10(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Forest-Sendai
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kyoichi Saito(NHK) / Takeshi Hoshida(Fujitsu) / Shun Morimura(CRIEPI) / Makoto Yamada(Osaka Metropolitan Univ.)
Vice Chair Hidekazu Murata(Yamaguchi Univ.) / Hajime Saito(TV Tokyo) / / Kouji Hirata(Kansai Univ)
Secretary Hidekazu Murata(NHK) / Hajime Saito(TV Asahi) / (NHK) / Kouji Hirata(Toshiba Infrastracture Systems & Solutions) / (Panasonic)
Assistant Tatsuhiro Nakada(Hitachi Kokusai Electric) / Daiki Fukudome(NHK) / Susumu Onogi(ytv) / / Yuuichi Shinohara(TEPCO Power Grid) / Akihiro Tanaka(CRIEPI) / Yukihiro Goto(NTT) / Naoyuki Ozawa(Fujikura)

Paper Information
Registration To Technical Group on Broadcasting Technology / Technical Committee on Optical Communication Systems / Technical Meeting on Communications / Technical Committee on Optical Fiber Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Remotely phase control of microwave signals using semiconductor optical amplifiers and optical beat
Sub Title (in English)
Keyword(1) Radio over fiber
Keyword(2) Optical beat
Keyword(3) Photonic generation
Keyword(4) Semiconductor optical amplifier
Keyword(5) Beam forming
1st Author's Name Shunya Hayashi
1st Author's Affiliation National Defense Academy(NDA)
2nd Author's Name Tomoyuki Uehara
2nd Author's Affiliation National Defense Academy(NDA)
3rd Author's Name Kenichiro Tsuji
3rd Author's Affiliation National Defense Academy(NDA)
Date 2022-11-10
Paper # OFT2022-38
Volume (vol) vol.122
Number (no) OFT-246
Page pp.pp.5-10(OFT),
#Pages 6
Date of Issue 2022-11-03 (OFT)