Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] |
2023-07-20 15:15 |
Hokkaido |
Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
A Study on Compact Optical Phased Array System Using Fresnel Reflection for Free Space Optical communication Eisuke Haraguchi, Tomohiro Akiyama, Hitomi Ono, Yuta Takemoto, Hidenobu Tsuji (MELCO) EMT2023-33 MW2023-51 OPE2023-33 EST2023-33 MWPTHz2023-29 |
[more] |
EMT2023-33 MW2023-51 OPE2023-33 EST2023-33 MWPTHz2023-29 pp.131-134 |
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] |
2023-07-20 15:40 |
Hokkaido |
Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
Evaluation of coherent beam combining with simultaneously detection of multiple beam angles with a quadrature-photodetector Tomohiro Akiyama, Akihiro Fujie, Eisuke Haraguchi, Hidenobu Tsuji (Mitsubishi Electric) EMT2023-34 MW2023-52 OPE2023-34 EST2023-34 MWPTHz2023-30 |
[more] |
EMT2023-34 MW2023-52 OPE2023-34 EST2023-34 MWPTHz2023-30 pp.135-138 |
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] |
2023-07-20 16:05 |
Hokkaido |
Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
Analog/Digital Cooperative IFoF Transmission Accommodating Multiple Radio Channels with High Efficiency Junya Nishioka, Sojiro Masada, Takatoshi Akamatsu, Tomohiro Akiyama, Michiya Hayama, Yoshiaki Konishi, Keita Mochizuki (Mitsubishi Electric Corp.) EMT2023-35 MW2023-53 OPE2023-35 EST2023-35 MWPTHz2023-31 |
For beyond-5G mobile access network, we evaluated performance of a digital demultiplexer prototype for intermediate freq... [more] |
EMT2023-35 MW2023-53 OPE2023-35 EST2023-35 MWPTHz2023-31 pp.139-142 |
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-20 11:15 |
Hokkaido |
Asahikawa Civic Culture Hall (Primary: On-site, Secondary: Online) |
Demonstration of coherent beam Combine system for higher beam intensity Akihiro Fujie, Tomohiro Akiyama, Yuta Takemoto, Eisuke Haraguchi, Toshiyuki Ando, Hideaki Ochimizu, Yosuke Akino (MELCO) EMT2022-42 MW2022-66 OPE2022-45 EST2022-43 MWPTHz2022-40 |
[more] |
EMT2022-42 MW2022-66 OPE2022-45 EST2022-43 MWPTHz2022-40 pp.168-173 |
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-20 11:40 |
Hokkaido |
Asahikawa Civic Culture Hall (Primary: On-site, Secondary: Online) |
Development of Coherent Optical Receiver Integrated with Spatial Tracking Sensor Hitomi Ono, Tomohiro Akiyama, Eisuke Haraguchi, Toshiyuki Ando (MELCO) EMT2022-43 MW2022-67 OPE2022-46 EST2022-44 MWPTHz2022-41 |
The optical satellite communication system with high-speed, small size and low power consumption is required because of ... [more] |
EMT2022-43 MW2022-67 OPE2022-46 EST2022-44 MWPTHz2022-41 pp.174-177 |
SAT, SANE (Joint) |
2022-02-24 13:00 |
Online |
Online |
[Special Talk]
Optical coherent technologies as applied to satellite laser communication Toshiyuki Ando, Keisuke Matsuda, Hitomi Ono, Akihiro Fujie, Yuta Takemoto, Tomohiro Akiyama (MELCO) SAT2021-57 |
[more] |
SAT2021-57 pp.25-30 |
OCS, CS (Joint) |
2022-01-14 14:05 |
Yamaguchi |
Conference room 204A・B at KDDI Ishin-hall (Primary: On-site, Secondary: Online) |
[Invited Talk]
Optical coherent technology as applied to space optical communication systems Toshiyuki Ando, Keisuke Matsuda, Hitomi Ono, Akihiro Fujie, Yuta Takemoto, Tomohiro Akiyama (MELCO) OCS2021-39 |
(Advance abstract in Japanese is available) [more] |
OCS2021-39 pp.32-36 |
MWP |
2019-11-27 14:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
[Invited Talk]
Flight Demonstration of Airborne Coherent Doppler Lidar Tomohiro Akiyama, Hamaki Inokuchi (JAXA) MWP2019-44 |
Air turbulence is the most significant cause of aviation accidents. As a way to reduce the number of such accidents, w... [more] |
MWP2019-44 pp.9-12 |
MW, EST, OPE, MWP, EMT, IEE-EMT, THz [detail] |
2019-07-18 14:45 |
Hokkaido |
Hakodate City Central Library |
Study on distribution and selection circuit of radio signal between multiple antennas and multiple receivers applying RoF technology Tomohiro Akiyama, Junya Nishioka, Akihiro Fujie, Toshiyuki Ando (Mitsubishi Electric Corp.) EMT2019-27 MW2019-40 OPE2019-31 EST2019-29 MWP2019-27 |
In order to make effective use of radio waves, it is necessary to observe the radio wave environment and detect illegal ... [more] |
EMT2019-27 MW2019-40 OPE2019-31 EST2019-29 MWP2019-27 pp.121-126 |
MW, EST, OPE, MWP, EMT, IEE-EMT, THz [detail] |
2019-07-18 15:10 |
Hokkaido |
Hakodate City Central Library |
A study of phase fluctuation compensation system of analog RoF transmission with commercially available digital optical transceiver Akihiro Fujie, Tomohiro Akiyama, Junya Nishioka, Eisuke Haraguchi, Toshiyuki Ando (MELCO) EMT2019-28 MW2019-41 OPE2019-32 EST2019-30 MWP2019-28 |
[more] |
EMT2019-28 MW2019-41 OPE2019-32 EST2019-30 MWP2019-28 pp.127-132 |
MW, EST, OPE, MWP, EMT, IEE-EMT, THz [detail] |
2019-07-18 16:40 |
Hokkaido |
Hakodate City Central Library |
Tunable Frequency and Phase Stable Radio-over-Fiber Transmission Using Reference Signal Generated by Self-Offset Phase Locked Loop Junya Nishioka, Tomohiro Akiyama, Akihiro Fujie, Takahiro Suzuki, Toshiyuki Ando (Mitsubishi Electric Corp.) EMT2019-31 MW2019-44 OPE2019-35 EST2019-33 MWP2019-31 |
[more] |
EMT2019-31 MW2019-44 OPE2019-35 EST2019-33 MWP2019-31 pp.145-148 |
OCS, PN, NS (Joint) |
2019-06-21 15:10 |
Iwate |
MALIOS(Morioka) |
Phase stable Analog RoF transmission with Commercially available digital optical transceiver Akihiro Fujie, Tomohiro Akiyama, Junya Nishioka, Eisuke Haraguchi, Toshiyuki Ando (MELCO) OCS2019-17 |
(Advance abstract in Japanese is available) [more] |
OCS2019-17 pp.37-41 |
SANE, SAT (Joint) |
2019-02-14 12:55 |
Kagoshima |
Tanegashima Island |
Simultaneous measurement of Airborne coherent Doppler LIDAR observability and aerosol particle back scattering coefficient in the sky tomohiro Akiyama, Hiroshi Oikawa, Hamaki Inokuchi (JAXA) SANE2018-122 |
Coherent Doppler LIDAR (LIght Detection And Ranging) measures the wind speed by using a scattered light from aerosol par... [more] |
SANE2018-122 pp.65-70 |
EST, MWP, OPE, MW, EMT, IEE-EMT [detail] |
2013-07-18 15:10 |
Hokkaido |
Wakkanai Synthesis Cultural Center |
High phase stabilized RF signal distribution over optical fiber based on optical heterodyne detection Eisuke Haraguchi, Hirofumi Matsuzawa, Tomohiro Akiyama, Toshiyuki Ando, Yoshihito Hirano (Mitsubishi Electric), Ryo Miyamura (Mitsubishi ElectricTokki System Corp.), Hirokazu Maesaka, Takashi Ohshima, Shinichi Matsubara, Yuji Otake (RIKEN) MW2013-70 OPE2013-39 EST2013-34 MWP2013-29 |
[more] |
MW2013-70 OPE2013-39 EST2013-34 MWP2013-29 pp.137-142 |
MWP, OPE, MW, EMT, EST, IEE-EMT [detail] |
2012-07-27 09:25 |
Hokkaido |
Hokkaido Univ. |
Phase stabilized RF reference signal dissemination over optical fiber employing instantaneous frequency control by VCO Tomohiro Akiyama, Hirofumi Matsuzawa, Toshiyuki Ando, Yoshihito Hirano (Mitsubishi Electric Corp.) MW2012-58 OPE2012-51 EST2012-40 MWP2012-39 |
Stable microwave reference signal transfer systems are required in communication systems, very long baseline interferome... [more] |
MW2012-58 OPE2012-51 EST2012-40 MWP2012-39 pp.191-196 |
MWP, OPE, MW, EMT, EST, IEE-EMT [detail] |
2012-07-27 09:50 |
Hokkaido |
Hokkaido Univ. |
Phase stabilized RF signal distribution over optical fiber with fiber length stabilized based on Differential Optical Heterodyning Technique Eisuke Haraguchi, Hirofumi Matsuzawa, Tomohiro Akiyama, Toshiyuki Ando (Mitsubishi Electric Corp.), Ryo Miyamura (Mitsubishi Electric Tokki System Corp.), Yoshihito Hirano (Mitsubishi Electric Corp.) MW2012-59 OPE2012-52 EST2012-41 MWP2012-40 |
[more] |
MW2012-59 OPE2012-52 EST2012-41 MWP2012-40 pp.197-202 |
MW |
2012-06-29 11:30 |
Gifu |
Gifu Univ. |
RF-Down and RF-Up Converting Optoelectronic Oscillator for Spurious Suppression Masashi Mizuma, Masaomi Tsuru, Shumpei Kameyama, Toshiyuki Ando, Tomohiro Akiyama (Mitsubishi Electric Co.) MW2012-19 |
[more] |
MW2012-19 pp.5-10 |
OPE, MW, MWP, EMT, EST, IEE-EMT [detail] |
2011-07-21 15:40 |
Hokkaido |
|
High efficiency optically controlled beam former by beam shaping optics Tomohiro Akiyama, Hirofumi Matsuzawa, Eisuke Haraguchi, Hideo Sumiyoshi, Toshiyuki Ando (Mitsubishi Electric Corp.), Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) MW2011-48 OPE2011-35 EST2011-34 MWP2011-16 |
We propose and demonstrate an optically controlled multiple-beam phased array antenna employing spatial light modulator.... [more] |
MW2011-48 OPE2011-35 EST2011-34 MWP2011-16 pp.61-66 |
AP, SAT (Joint) |
2011-07-15 09:25 |
Nagano |
Fac. Eng., Shinshu Univ. |
Transmission Characteristics of Variable Scanning Spot Antenna using Optical Beam Forming Network Hirofumi Matsuzawa, Tomohiro Akiyama, Hideo Sumiyoshi, Toshiyuki Ando, Masateru Nagase (MELCO), Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) SAT2011-13 |
[more] |
SAT2011-13 pp.31-36 |
SANE |
2011-06-24 15:45 |
Ibaraki |
Tsukuba Space Center (JAXA) |
Experimental results of multiple-beam optically controlled beamformer using spatial light modulators Tomohiro Akiyama, Hirofumi Matsuzawa, Eisuke Haraguchi, Hideo Sumiyoshi (Mitsubishi Electric Corp.), Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) SANE2011-43 |
[more] |
SANE2011-43 pp.153-158 |