Misc - KANNO Atsushi
-
Single-Sideband Modulation Using High Extinction-Ratio Parallel Mach-Zehnder Modulator with Third-Order Harmonic Superposition
115 ( 277 ) 177 - 180 2015.10
-
C-14-17 Improvement of Modulation Efficiency of Electro-Optic Modulators with Gap-Embedded Patch Antenna Utilizing Stacked Structure
Aya Hironori, Wijayanto Yusuf Nur, Kanno Atsushi, Kawanishi Tetsuya, Murata Hiroshi, Okamura Yasuyuki
Proceedings of the Society Conference of IEICE 2015 ( 1 ) 183 - 183 2015.08
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
-
90GHz Optical Phase Modulator Using Slotted Patch Antennas on Thin LiNbO₃ Optical Crystal (マイクロ波・ミリ波フォトニクス)
WIJAYANTO Yusuf Nur, KANNO Atsushi, KAWANISHI Tetsuya
115 ( 145 ) 149 - 154 2015.07
-
90GHz Optical Phase Modulator Using Slotted Patch Antennas on Thin LiNbO₃ Optical Crystal (エレクトロニクスシミュレーション)
WIJAYANTO Yusuf Nur, KANNO Atsushi, KAWANISHI Tetsuya
115 ( 144 ) 149 - 154 2015.07
-
90GHz Optical Phase Modulator Using Slotted Patch Antennas on Thin LiNbO₃ Optical Crystal (マイクロ波)
WIJAYANTO Yusuf Nur, KANNO Atsushi, KAWANISHI Tetsuya
115 ( 142 ) 149 - 154 2015.07
-
Optical Frequency-Interleaving Full-Duplex Technique for Simultaneous Transmission of Millimeter-Wave-Band Frequency-Modulated Continuous-Wave Downlink Signal and 10-Gb/s-Class On-Off-Keying Uplink Signal
115 ( 144 ) 137 - 142 2015.07
-
High-Spectral Efficiency Fiber-Millimeter-Wave System Using Intermediate Frequency-over-Fiber and Remote Local-Oscillator Signal Delivery (マイクロ波・ミリ波フォトニクス)
TIEN DAT Pham, 菅野 敦史, 川西 哲也
115 ( 53 ) 45 - 50 2015.05
-
C-3-70 Extinction-Ratio and Chirp Tunable Mach-Zehnder Modulator
YAMAGUCHI Yuya, NAKAJIMA Shinya, KANNO Atsushi, KAWANISHI Tetsuya, IZUTSU Masayuki, NAKAJIMA Hirochika
Proceedings of the IEICE General Conference 2015 ( 1 ) 194 - 194 2015.02
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
-
B-10-67 Simultaneous 10 Gbaud QPSK transmission over a 10 km-long holey fiber in O-, C-bands
Yagi Fumiya, Murano Akihiro, Yamamoto Naokatsu, Kanno Atsushi, Kawanishi Tetsuya, Sotobayashi Hideyuki
Proceedings of the IEICE General Conference 2015 ( 2 ) 403 - 403 2015.02
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
-
B-10-80 Widely linear EDFA for analog Radio-over-Fiber Transmission with 10GE signals
Shiraiwa Masaki, Kanno Atsushi, Awji Yoshinari, Wada Naoya, Kawanishi Tetsuya, Kitayama Ken-ichi
Proceedings of the IEICE General Conference 2015 ( 2 ) 416 - 416 2015.02
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
-
C-14-22 Ultra-broadband UTC-PD beyond 110 GHz at zero bias
Umezawa Toshimasa, Akahane Kouichi, Yamamoto Naokatsu, Inagaki Keizo, Kanno Atsushi, Kawanishi Tetsuya
Proceedings of the IEICE General Conference 2015 ( 1 ) 240 - 240 2015.02
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
-
300-GHz coherent signal transmission using high-gain antennas
KANNO Atsushi, KURI Toshiaki, MOROHASHI Isao, HOSAKO Iwao, KAWANISHI Tetsuya, YOSHIDA Yuki, KITAYAMA Ken-ichi
Technical report of IEICE. LQE 114 ( 432 ) 209 - 212 2015.01
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
We report 300-GHz-band terahertz wave transmission using radio over fiber and digital coherent detection technologies with high-gain terahertz antenna. It is also discussed possibility of long distance transmission in 300-GHz band based on obtained experimental results.
-
Advances of Optical Amplification Technology for Next Generation Optical Switching Networks
SHIRAIWA Masaki, SHINADA Satoshi, PATTNUM Benjamin J., AWAJI Yoshinari, WADA Naoya, MIYAZAWA Takaya, HARAI Hiroaki, KANNO Atsushi, KURI Toshiaki, KAWANISHI Tetsuya
Technical report of IEICE. LQE 114 ( 432 ) 63 - 68 2015.01
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
The novel optical amplifications technology is indispensable for dynamic optical circuit switching and next generation optical packet switching. This paper will discuss some specifications of optical amplifiers to accommodate future wavelength multiplexing as well as time division elastically multiplexing optical networks, and present our approach to the optical amplification technology for the optical packet and optical circuit integrated network that we are developing.
-
Optically Millimeter-Wave Beam-Forming Based-on Patch-Antenna Array with Electro-Optic Modulator for Communication and Radar Systems
WIJAYANTO Yusuf Nur, KANNO Atsushi, MURATA Hiroshi, KAWANISHI Tetsuya, OKAMURA Yasuyuki
Technical report of IEICE. LQE 114 ( 432 ) 223 - 228 2015.01
Language：English Publisher：The Institute of Electronics, Information and Communication Engineers
We propose an optically wireless millimeter-wave beam-forming based-on an antenna array with an electro-optic (EO) modulator for applications to communication and radar. An Array of patch-antennas are fabricated on an EO modulator bonded with a low dielectric constant material for receiving wireless millimeter-wave signals and converting the received millimeter-wave to lightwave signals through the Pockels effects of an EO crystal. By using the array structure, high antenna gain and narrow wireless millimeter-wave beam-width can be obtained for effective operation. Furthermore, the beam-forming of wireless millimeter-wave signals can be controlled to certain direction using polarization-reversed methods. The polarization-reversed method with meandering gaps in the metal patch is used, where it has simple structure and easy in realization. In this report, analysis of the optically wireless beam-forming with narrow beam-width (<5 degree) and large beam scanning area (up to 120 degree) for millimeter-wave operations is discussed. The optically millimeter-wave beam-forming can be used for realizing directed wireless communication and scanned millimeter-wave radar systems.
-
Effects of Optical Phase Noise and Fiber Dispersion on Performance of LTE-A Signal Transmission over a Seamless Fiber-MMW System
TIEN DAT Pham, KANNO Atsushi, KAWANISHI Tetsuya
114 ( 430 ) 199 - 204 2015.01
Language：English Publisher：The Institute of Electronics, Information and Communication Engineers
Optical phase noise and fiber dispersion induced effects are important impairments that would limit the performance of a seamless fiber-wireless system. In this paper, we experimentally investigate the effects of these impairments on performance of an LTE-A signal transmission over a seamless fiber-millimeter-wave system at 92.5 GHz. To evaluate the effects of optical phase noise, we compare the performance of a modulator-based optical two-tone signal generator using dual-wavelength and single-wavelength with different fiber-delay lengths for data modulation, and an optical heterodyne system using a free-running laser for a local oscillator. For evaluation of fiber dispersion induced effects, different fiber transmission lengths are used for the signal transmission in each case. At the receiver, to avoid the effects of frequency offset and electrical phase noise, a simple direct detection scheme using an envelope detector is used.
-
Effects of Optical Phase Noise and Fiber Dispersion on Performance of LTE-A Signal Transmission over a Seamless Fiber-MMW System
TIEN DAT Pham, KANNO Atsushi, KAWANISHI Tetsuya
Technical report of IEICE. LQE 114 ( 432 ) 199 - 204 2015.01
Language：English Publisher：The Institute of Electronics, Information and Communication Engineers
Optical phase noise and fiber dispersion induced effects are important impairments that would limit the performance of a seamless fiber-wireless system. In this paper, we experimentally investigate the effects of these impairments on performance of an LTE-A signal transmission over a seamless fiber-millimeter-wave system at 92.5 GHz. To evaluate the effects of optical phase noise, we compare the performance of a modulator-based optical two-tone signal generator using dual-wavelength and single-wavelength with different fiber-delay lengths for data modulation, and an optical heterodyne system using a free-running laser for a local oscillator. For evaluation of fiber dispersion induced effects, different fiber transmission lengths are used for the signal transmission in each case. At the receiver, to avoid the effects of frequency offset and electrical phase noise, a simple direct detection scheme using an envelope detector is used.
-
MIMO-enabled W-Band Mode-Division Multiplexing RoF Transmission over DMGD-compensated FMF link
DIAMANTOPOULOS Nikolaos P., INUDO Shohei, YOSHIDA Yuki, MARUTA Akihiro, KANNO Atsushi, DAT Pham Tien, KAWANISHI Tetsuya, MARUYAMA Ryo, KUWAKI Nobuo, MATSUO Shoichiro, KITAYAMA Ken-ichi
114 ( 430 ) 205 - 208 2015.01
Language：English Publisher：The Institute of Electronics, Information and Communication Engineers
Seamless radio-over-fiber (RoF) transmission of W-Band millimeter-wave signals is a promising technology for high-capacity "last-mile" radio access with increased network resilience to natural disasters. Also, mode-division multiplexing (MDM) utilized by differential modal group delay (DMGD)-compensated few-mode fiber (FMF) links can offer high multiplexing gain with low computational complexity. Here, 10Gbps-order RoF transmission is demonstrated using 92.5 GHz W-Band signals over a wireless path of 2.5-m and a 30-km DMGD-compensated MDM link. 5 and 10 GBaud QPSK and BPSK signals were studied and capacities up to 20Gbps were achieved, when considering 7% forward error correction (FEC) overhead.
-
MIMO-enabled W-Band Mode-Division Multiplexing RoF Transmission over DMGD-compensated FMF link
DIAMANTOPOULOS Nikolaos P., INUDO Shohei, YOSHIDA Yuki, MARUTA Akihiro, KANNO Atsushi, DAT Pham Tien, KAWANISHI Tetsuya, MARUYAMA Ryo, KUWAKI Nobuo, MATSUO Shoichiro, KITAYAMA Ken-ichi
Technical report of IEICE. LQE 114 ( 432 ) 205 - 208 2015.01
Language：English Publisher：The Institute of Electronics, Information and Communication Engineers
Seamless radio-over-fiber (RoF) transmission of W-Band millimeter-wave signals is a promising technology for high-capacity "last-mile" radio access with increased network resilience to natural disasters. Also, mode-division multiplexing (MDM) utilized by differential modal group delay (DMGD)-compensated few-mode fiber (FMF) links can offer high multiplexing gain with low computational complexity. Here, 10Gbps-order RoF transmission is demonstrated using 92.5 GHz W-Band signals over a wireless path of 2.5-m and a 30-km DMGD-compensated MDM link. 5 and 10 GBaud QPSK and BPSK signals were studied and capacities up to 20Gbps were achieved, when considering 7% forward error correction (FEC) overhead.
-
Optically Millimeter-Wave Beam-Forming Based-on Patch-Antenna Array with Electro-Optic Modulator for Communication and Radar Systems
WIJAYANTO Yusuf Nur, KANNO Atsushi, MURATA Hiroshi, KAWANISHI Tetsuya, OKAMURA Yasuyuki
114 ( 430 ) 223 - 228 2015.01
Language：English Publisher：The Institute of Electronics, Information and Communication Engineers
We propose an optically wireless millimeter-wave beam-forming based-on an antenna array with an electro-optic (EO) modulator for applications to communication and radar. An Array of patch-antennas are fabricated on an EO modulator bonded with a low dielectric constant material for receiving wireless millimeter-wave signals and converting the received millimeter-wave to lightwave signals through the Pockels effects of an EO crystal. By using the array structure, high antenna gain and narrow wireless millimeter-wave beam-width can be obtained for effective operation. Furthermore, the beam-forming of wireless millimeter-wave signals can be controlled to certain direction using polarization-reversed methods. The polarization-reversed method with meandering gaps in the metal patch is used, where it has simple structure and easy in realization. In this report, analysis of the optically wireless beam-forming with narrow beam-width (<5 degree) and large beam scanning area (up to 120 degree) for millimeter-wave operations is discussed. The optically millimeter-wave beam-forming can be used for realizing directed wireless communication and scanned millimeter-wave radar systems.
-
Experimental evaluation of frequency fluctuation on millimeter-wave fiber-wireless link for future wired and wireless seamless access network
KANNO Atsushi, TIEN DAT Pham, KURI Toshiaki, KAWANISHI Tetsuya, YOSHIDA Yuki, KITAYAMA Ken-ichi
Technical report of IEICE. OCS 114 ( 403 ) 1 - 5 2015.01
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
Seamless connectivity between an optical fiber network and a radio network can be realized by a radio over fiber technologies. In this photonics-based radio signal generation, optimization of the radio signal quality, particularly in frequency fluctuation, is a key for realization on the system because all the radio waves should be consistent with radio regulations. In the paper, we evaluate the signal quality difference on frequency fluctuations using two signal generation methods in a high-capacity fiber-wireless link.
