Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
PN |
2025-03-04 13:00 |
Okinawa |
(Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Evaluation of optical fibers using linear optical sampling and application to LiDAR Chao Zhang, Kyogo Osawa, Akira Izumoto, Takahiro Suyama, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Shingo Ohno, Kunihiro Toge (NTT) |
[more] |
|
OFT |
2025-01-23 14:40 |
Osaka |
(Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Statistical Analysis of Spatial Mode Dispersion of Coupled 4-Core Fiber
-- Comparison of fixed analyzer method and linear optical sampling -- Kyogo Osawa, Akira Izumoto, Takahiro Suyama, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Shingo Ohno, Kunihiro Toge (NTT) OFT2024-92 |
[more] |
OFT2024-92 pp.45-48 |
OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 15:25 |
Kochi |
(Kochi) |
Evaluation of concrete structures with OFDR and developments towards on-site testing Yuichi Yoshimura, Devin Gunawan, Shintaro Kojima, Yuki Yokota, Michio Imai (Kajima), Chao Zhang, Fumihiko Ito (Shimane Univ.) OFT2024-69 |
Distributed fiber optic sensing is actively utilized for the efficient, rational construction and maintenance management... [more] |
OFT2024-69 pp.5-8 |
OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 16:00 |
Kochi |
(Kochi) |
[Invited Talk]
Assessing water position in porous media through distributed temperature sensing using Phase-noise-compensated optical frequency domain reflectometry Tetsuya Kogure (Kyoto Univ.), Ashis Acharya, Daiki Tanimura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Toshihiro Sakaki (ESE), Mitsuru Komatsu (Okayama Univ.), Issei Doi (Kyoto Univ.) OFT2024-70 |
Assessing groundwater migration or groundwater position is critical in elucidating the slope-formation process or in pre... [more] |
OFT2024-70 pp.9-12 |
OFT |
2024-10-10 10:10 |
Tokyo |
(Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Remote strain measurement by using PNC-OFDR through optical fiber for data communication Sakuya Hara, Keigo Nakao, Ryota Ogu, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (Kajima Corp.) OFT2024-35 |
When optical fiber sensing is applied to the monitoring of structures during construction and service, there are situati... [more] |
OFT2024-35 pp.13-17 |
OFT |
2024-10-10 13:20 |
Tokyo |
(Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Long distance dynamic strain measurement by using phase-noise-compensated OFDR Ryota Ogu, Keigo Nakao, Sakuya Hara, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (Kajima Corp.) OFT2024-44 |
We performed dynamic strain measurements over 1-km distance using phase-noise-compensated optical frequency domain refle... [more] |
OFT2024-44 pp.55-59 |
SAT, RCS (Joint) |
2024-08-29 10:05 |
Kochi |
CUL-PORT(Kochi City) (Temporary) (Kochi, Online) (Primary: On-site, Secondary: Online) |
1-bit DAC for Image Enhancement of Q-band Direct Digital RF Transmitter Yuki Fujiya, Koki Furuuchi, Junhao Zhang, Tomoyuki Furuichi, Satoshi Tsukamoto, Noriharu Suematsu (Tohoku Univ.) SAT2024-34 |
A Q-band direct digital RF transmitter have proposed for the realization of future Japanese Low Earth Orbit (LEO) conste... [more] |
SAT2024-34 pp.10-15 |
AP, SANE, SAT (Joint) |
2024-07-25 09:50 |
Hokkaido |
Frontier Research in Applied Sciences Building, Hokkaido University (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
DSP basic design of direct digital RF transmitter for a LEO satellite Q-band DBF antenna Noriharu Suematsu, Kouki Nakamura, Junhao Zhang, Yuki Fujiya, Tomoyuki Furuichi, Satoshi Tsukamoto (Tohoku Univ.) SAT2024-18 |
A digital signal processor (DSP) basic design of direct digital RF transmitter with 100GbE optical fiber link is carried... [more] |
SAT2024-18 pp.20-24 |
MW, EMT, OPE, MWPTHz, EST, IEE-EMT [detail] |
2024-07-12 10:00 |
Hokkaido |
otaru-shimin-kaikan (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
40 GHz-band 4-elemnt Vivaldi antenna array with Double-slit for integrated antenna module Koki Furuuchi, Junhao Zhang, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) EMT2024-36 MW2024-60 OPE2024-39 EST2024-37 MWPTHz2024-43 |
For millimeter-wave band DBF antennas, antenna integrated transceiver module configuration is preferable because of rela... [more] |
EMT2024-36 MW2024-60 OPE2024-39 EST2024-37 MWPTHz2024-43 pp.146-151 |
MW |
2024-02-29 10:55 |
Okayama |
Okayama Prefectural University (Okayama, Online) (Primary: On-site, Secondary: Online) |
A Study of Digital Modulation Computation Bit Count and 1- bit BP Delta Delta-Sigma Modulation OSR for 40 -GHz Band Direct Digital RF ModulatoModulator Kouki Nakamura, Satoshi Tsukamoto, Junhao Zhang, Yuki Fujiya, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) MW2023-176 |
For future Low Earth Orbit (LEO) constellation satellite communication system, a development millimeter-wave digital bea... [more] |
MW2023-176 pp.9-14 |
HIP |
2023-12-21 11:00 |
Miyagi |
Research Institute of Electrical Communication (Miyagi) |
Natural finger-tapping tempo reflects intrinsic neurophysiological characteristics
-- Neural correlates of natural tempo -- Sai Sun (Tohoku Univ.), Daw-An Wu, Mohammad Shehata (Caltech), Takuya Akashi, Morimichi Furudate (Iwate Univ.), Chao Zhang (Fukui Univ.), Ken-Ichiro Tsutsui, Satoshi Shioiri (Tohoku Univ.), Shinsuke Shimojo (Caltech) HIP2023-77 |
Individuals often have a natural rhythm or speed in their motor activities, such as walking and talking. What remains la... [more] |
HIP2023-77 pp.5-12 |
QIT (2nd) |
2023-12-17 17:30 |
Okinawa |
OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Optimal POVM with minimal size in two-parameter qubit-state estimation Jianchao Zhang, Jun Suzuki (UEC) |
In the realm of qubit state tomography, the accurate estimation of quantum states parameterized across the complete Bloc... [more] |
|
MW, EMCJ, EST, IEE-EMC [detail] |
2023-10-20 09:00 |
Yamagata |
Yamagata University (Yamagata, Online) (Primary: On-site, Secondary: Online) |
Design of Required Bit Count and 1 1-bit BP Delta Delta-Sigma Modulation OSR for 40 -GHz Band DBF Direct Digital RF Transmitter Kouki Nakamura, Satoshi Tsukamoto, Junhao Zhang, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) EMCJ2023-56 MW2023-110 EST2023-83 |
For future Low Earth Orbit (LEO) constellation satellite communication system, a development millimeter-wave digital bea... [more] |
EMCJ2023-56 MW2023-110 EST2023-83 pp.107-112 |
OFT, OCS, LSJ (Joint) [detail] |
2023-08-25 10:55 |
Hokkaido |
(Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Ultrafast Measurement of Spatial Modes employing Two-dimensional Linear Optical Sampling Shuki Okamura, Kyogo Osawa, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Yusuke Koshikiya (NTT) OFT2023-14 |
With the combination of linear optical sampling a low-speed photodiode array, we measured the two-dimensional complex am... [more] |
OFT2023-14 pp.27-31 |
QIT (2nd) |
2022-12-08 14:00 |
Kanagawa |
Keio Univ. (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
QestOptPOVM: Numerical search for finding an optimal POVM for multiparameter estimation Jianchao Zhang, Jun Suzuki (UEC) |
It is of fundamental question to find an optimal measurement (POVM) that extracts the most information available about t... [more] |
|
MRIS, CPM, ITE-MMS [detail] |
2022-10-28 10:45 |
Nagano |
Shinshu Univ. (Nagano, Online) (Primary: On-site, Secondary: Online) |
Electric field induced motion of magnetic skyrmions and the transformation of topological spin textures Xichao Zhang, Xiaoxi Liu (Shinshu Univ.) MRIS2022-15 CPM2022-46 |
Ultra low energy control of spin textures is the foundation for information technology. Magnetic skyrmions, magnetic vor... [more] |
MRIS2022-15 CPM2022-46 pp.37-42 |
OFT |
2022-10-13 09:30 |
Kanagawa |
Kanagawa-Kenmin Center (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Dynamic strain measurement by OFDR employing high-speed wavelength-swept laser Ryota Ogu, Daiki Tanimura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (KAJIMA) OFT2022-23 |
We constructed an optical frequency domain reflectometry using a broadband, high-speed wavelength swept laser with a MEM... [more] |
OFT2022-23 pp.20-24 |
OFT |
2022-10-13 10:50 |
Kanagawa |
Kanagawa-Kenmin Center (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Bandwidth-by-band Measurement of Spatial-Mode Dispersion of Coupled 2-Core and 4-Core Fibers employing Linear Optical Sampling Shuki Okamura, Masafumi Uyama, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Tatsuya Okamoto, Yusuke Koshikiya (NTT) OFT2022-30 |
The impulse responses of coupled 2-core and 4-core fibers with various fiber lengths were measured over a wide bandwidth... [more] |
OFT2022-30 pp.47-52 |
R |
2022-10-07 16:15 |
Fukuoka |
(Fukuoka, Online) (Primary: On-site, Secondary: Online) |
A Note on Hierarchical Modeling for Multi-State System Hiroyuki Okamura (Hiroshima Univ.), Junjun Zheng (Osaka Univ.), Jiahao Zhang, Tadashi Dohi (Hiroshima Univ.) R2022-39 |
[more] |
R2022-39 pp.43-47 |
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-19 10:50 |
Hokkaido |
Asahikawa Civic Culture Hall (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
A 20GHz-Band Optical-Fiber-Feed 1-Bit BP-ΔΣ Direct Digital RF Transmitter Using First Image Component of the QSFP28 Module Junhao Zhang, Noriharu Suematsu (Tohoku Univ.) EMT2022-20 MW2022-44 OPE2022-23 EST2022-21 MWPTHz2022-18 |
[more] |
EMT2022-20 MW2022-44 OPE2022-23 EST2022-21 MWPTHz2022-18 pp.66-71 |