Array-antenna-electrode electro-optic modulators for millimeter-wave radio-over-fiber systems

We have proposed and developed array-antenna-electrode electro-optic (EO) LiNbO3 modulators to convert wireless millimeter-wave signals to optical signals. In particular, by introducing polarization-reversed structures in the LiNbO3 crystal/film of the device substrate, the advanced functions of discrimination between space-division-multiplexed (SDM) wireless signals and generation of optical single-sideband (SSB) modulation signals are obtainable. In this paper, newly developed EO modulators operating in the 60 GHz band are presented. Applications to up-links in fifth generation (5G) mobile communication systems are also discussed.

[1]  Yasuyuki Okamura,et al.  Electro-Optic Modulators Using Double Antenna-Coupled Electrodes for Radio-over-Fiber Systems , 2013, IEICE Trans. Electron..

[2]  Zhengang Pan,et al.  Toward green and soft: a 5G perspective , 2014, IEEE Communications Magazine.

[3]  T. Kawanishi,et al.  Single side-band modulation performance of a LiNbO3 integrated modulator consisting of four-phase modulator waveguides , 2001, IEEE Photonics Technology Letters.

[4]  H. Murata,et al.  Electrooptic single-sideband modulator using resonant electrodes and polarization-reversed structure , 2005, (CLEO). Conference on Lasers and Electro-Optics, 2005..

[5]  Yasuyuki Okamura,et al.  Wireless space-division-multiplexed signal discrimination device using electro-optic modulator with antenna-coupled electrodes and polarization-reversed structures , 2012, International Journal of Microwave and Wireless Technologies.

[6]  Yasuyuki Okamura,et al.  Electro-optic modulator using patch antenna-coupled resonant electrodes and polarization-reversed structure for radio-on-fiber systems , 2009, 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference.

[7]  José Capmany,et al.  Microwave photonics combines two worlds , 2007 .

[8]  A·泰希拉,et al.  Optical single sideband modulator , 2006 .

[9]  Yasuyuki Okamura,et al.  High-Speed Signal Processing Utilizing Polarization-Reversed Electro-Optic Devices , 2014, Journal of Lightwave Technology.

[10]  Yasuyuki Okamura,et al.  Guided-Wave Electro-Optic Modulators Using Novel Electrode Structure of Coupled Microstrip Line Resonator , 2005, IEICE Trans. Electron..

[11]  A.J. Seeds,et al.  Microwave Photonics , 2006, Journal of Lightwave Technology.

[12]  Anass Benjebbour,et al.  Design considerations for a 5G network architecture , 2014, IEEE Communications Magazine.