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3 Photonics Technologies 3-1 Optical Modulators for Photonic Sideband Management KAWANISHI Tetsuya and IZUTSU Masayuki In this paper, we presented our recent works on development of optical modulators and subsystems. The modulators have new functions, such as optical frequency shift, modulation by radio-frequency-signal, etc, in addition to conventional ON/OFF keying. The target of our works is to provide particular functions for novel systems, such as radio-on-fiber system, optical packet switching, etc. Optical modulator, Resonance, Impedance, Optical fiber, Radio communication 37

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