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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT, OCS, LSJ (Joint) [detail] |
2023-08-25 10:55 |
Hokkaido | (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 |
| OFT | 2022-10-13 09:30 |
Kanagawa | Kanagawa-Kenmin Center (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 (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 |
| OFT | 2022-05-13 14:00 |
Aomori | Aomori-Aspm Bldg (Primary: On-site, Secondary: Online) |
Measurement of Spatial-Mode Dispersion of Coupled 2-Core Fiber employing Linear Optical Sampling Masafumi Uyama, Shuki Okamura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Tatsuya Okamoto, Yusuke Koshikiya (NTT) OFT2022-3 |
The spatial mode dispersion of two types of coupled multicore fibers, one with a homogeneous core and the other with a h... [more] | OFT2022-3 pp.11-15 |
| OFT, OCS, IEE-CMN, ITE-BCT [detail] | 2021-11-19 11:15 |
Online | Online | [Invited Talk]
Recent progress of coherent free-space optical communications Chao Zhang (Shimane Univ.), Kota Uyama, Zheyuan Zhang, Sze Yun Set, Shinji Yamashita (Univ. of Tokyo) OFT2021-54 |
Free-space optical communication is preferred for its advantages over radio frequency wireless communication, such as no... [more] | OFT2021-54 pp.17-22 |
| OFT | 2021-10-14 10:30 |
Online | Online | [Poster Presentation]
Mutual interference suppression for FMCW LiDAR Akifumi Soma, Shota Araishi, Sougo Shimizu, Chao Zhang, Fumihiko Ito (Shimane Univ.) OFT2021-27 |
In this article, we outline mutual interference in frequency-modulated continuous-wave LiDAR and proposes a suppression ... [more] | OFT2021-27 pp.23-28 |
| NS | 2021-04-16 10:25 |
Online | Online | ALR Switching and Routing Strategy for Multiple Sites Based on Traffic Splitting Method for Power Saving Chao Zhang, Shigetomo Kimura (Univ. of Tsukuba) NS2021-9 |
In recent years, researchers focus on methods to reduce the network devices’ energy consumption since it is increasing r... [more] | NS2021-9 pp.47-52 |
| OFT | 2021-01-14 15:10 |
Online | Online | Research on Amplitude-Modulated Continuous-Wave Laser Scanners Chao Zhang, Sze Yun Set, Shinji Yamashita (Univ. Tokyo) OFT2020-48 |
[more] | OFT2020-48 pp.17-22 |
| OFT, OCS, OPE (Joint) [detail] |
2019-02-14 13:40 |
Fukuoka | Theoretical Study of All Polarization Maintaining Fiber Based Hybrid Mode-Locked Er-Doped Fiber Laser
-- The Impact of Saturable Absorber Recovery Time -- Lei Jin, Neisei Hayashi, Chao Zhang, Sze Yun Set, Shinji Yamashita (Univ. Tokyo) OCS2018-81 OFT2018-71 OPE2018-193 |
(Advance abstract in Japanese is available) [more] | OCS2018-81 OFT2018-71 OPE2018-193 pp.7-11 |
|
| ICD, SDM, ITE-IST [detail] | 2016-08-03 11:25 |
Osaka | Central Electric Club | [Invited Talk]
A Three-Terminal Spin-Orbit Torque Switching Magnetic Memory Device
-- Toward Realization of High-Speed and Low-Power Nonvolatile Integrated Circuits -- Shunsuke Fukami, Tetsuro Anekawa, Ayato Ohkawara, Chaoliang Zhang, Hideo Ohno (Tohoku Univ.) SDM2016-63 ICD2016-31 |
Integrated circuits with non-volatile spintronics memory devices open up new pathways toward ultralow-power and high-per... [more] | SDM2016-63 ICD2016-31 pp.99-103 |
| LQE, OPE, OCS | 2010-10-28 17:55 |
Fukuoka | Mojiko Retro Town, Minato house | Ultrafast digital coherent receiver based on subband technique Chao Zhang, Yojiro Mori (The Univ. of Tokyo/Japan Society for the Promotion of Sci), Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo) OCS2010-69 OPE2010-105 LQE2010-78 |
The maximum symbol rate at which a digital coherent receiver can process is strictly limited by the operation speed of a... [more] | OCS2010-69 OPE2010-105 LQE2010-78 pp.85-90 |
| OFT, OCS (Joint) |
2009-08-27 14:00 |
Hokkaido | Nonlinear tolerance of Quadrature-Amplitude-Modulated signals in Digital Coherent Detection Yojiro Mori, Chao Zhang, Masatoshi Usui, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (Univ. of Tokyo) OCS2009-33 |
The use of multi-level modulation formats is one of the most effective ways of enhancing the spectral efficiency in opti... [more] | OCS2009-33 pp.23-28 |
|
| OFT, OCS (Joint) |
2009-08-27 14:25 |
Hokkaido | Transmission of 160-Gbit/s QPSK signals on a single carrier over 1,000 km using digital coherent receivers Chao Zhang, Yojiro Mori, Masatoshi Usui, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo) OCS2009-34 |
The maximum symbol rate that a digital coherent receiver can process is strictly limited by the operation speed of analo... [more] | OCS2009-34 pp.29-34 |
|
| OCS, OFT (Joint) |
2008-08-28 15:45 |
Hokkaido | Transmission of 10-Gsymbol/s 16-QAM Signal using Digital Coherent Optical Receiver Yojiro Mori, Chao Zhang, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo) OCS2008-39 |
The use of multilevel modulation formats is one of the most effective ways of enhancing the spectral efficiency in optic... [more] | OCS2008-39 pp.35-40 |
|
| OCS, OFT (Joint) |
2008-08-28 16:10 |
Hokkaido | Ultrafast Operation of Digital Coherent Receivers Using Optical Time-Division Demultiplexing Function Chao Zhang, Yojiro Mori, Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (The Univ. of Tokyo) OCS2008-40 |
The digital coherent receiver realizes phase synchronization in the digital domain and can demodulate any multilevel cod... [more] | OCS2008-40 pp.41-46 |
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