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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 09:30 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Distance correction of X-band radar by laser lidar Tomoyuki Uehara, Shuji Sayama, Tsuji Kenichiro (NDA)  OFT2023-12 |
Radars are used to detect ships, structures, drones. Radars installed on ships and on land radars are placed on top of s... [more] | OFT2023-12 pp.17-20 |
| ITE-BCT, OCS, IEE-CMN, OFT | 2022-11-10 15:25 |
Miyagi | Forest-Sendai (Primary: On-site, Secondary: Online) |
Harmonic generation by generated microwave using optical beat Tomoyuki Uehara, Kenichiro Tsuji (NDA) OFT2022-37 |
A microwave is generated by optical beat of two lasers connected with optical fibers for the purpose of transmitting and... [more] | OFT2022-37 pp.1-4 |
| ITE-BCT, OCS, IEE-CMN, OFT | 2022-11-10 15:50 |
Miyagi | Forest-Sendai (Primary: On-site, Secondary: Online) |
Remotely phase control of microwave signals using semiconductor optical amplifiers and optical beat Shunya Hayashi, Tomoyuki Uehara, Kenichiro Tsuji (NDA) OFT2022-38 |
Next-generation access networks are expected to use high-frequency radio signals with high attenuation, requiring the in... [more] | OFT2022-38 pp.5-10 |
| MW | 2021-12-16 16:05 |
Kanagawa | Kawasaki City Industrial Promotion Hall (Primary: On-site, Secondary: Online) |
Remote phase control of microwave signals generated by optical beat using 1.3μm-band SOA with 1.55μm-band signal light Shunya Hayashi, Tomoyuki Uehara, Kenichiro Tsuji (NDA) MW2021-94 |
Optical fiber wireless technology has been attracting attention to effectively transmit high-frequency wireless signals.... [more] | MW2021-94 pp.55-60 |
| OFT | 2021-05-14 14:45 |
Online | Online | Optically-generated microwave detection by electric field sensor using Mach-Zehnder interferometer Tomoyuki Uehara, Matsumoto Minagi, Kenichiro Tsuji (NDA) OFT2021-9 |
A microwave is generated by optical beat of two lasers connected with optical fibers for the purpose of transmitting and... [more] | OFT2021-9 pp.36-39 |
| OFT | 2021-05-14 15:10 |
Online | Online | Distributed strain measurement using stimulated Brillouin scattering pumped by orthogonal two-wavelength pulses Kenichiro Tsuji, Tomoyuki Uehara (NDA) OFT2021-10 |
In the distributed strain measurement with a conventional BOTDA using stimulated Brillouin scattering, a polarization sc... [more] | OFT2021-10 pp.40-43 |
| OFT, OCS, LSJ (Joint) [detail] |
2019-08-30 10:20 |
Hokkaido | Frequency-characteristics measurements of optical frequency combs by beat notes technique Tomoyuki Uehara, Kenichiro Tsuji (NDA) OFT2019-27 |
Optical frequency comb is used in many applications. In this research, we construct an optical frequency comb for precis... [more] | OFT2019-27 pp.19-22 |
|
| MW | 2018-12-13 16:10 |
Kanagawa | Kanagawa Univ. | Control of birefringence in photonic generation of phase-controlled beat signal using birefringence optical fiber Syota Ito, Tomoyuki Uehara, Kenichiro Tsuji (NDA) MW2018-125 |
The microwave beat note generation from two optical waves is an attractive technique for the efficient generation of a p... [more] | MW2018-125 pp.67-71 |
| AP, MW (Joint) |
2014-09-18 14:10 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | Phase modulated-microwave signal generation using orthogonal polarization modes with optical beat method Kohei Hagiwara, Kenichiro Tsuji, Tomoyuki Uehara, Noriaki Onodera (NDA) MW2014-86 |
Recently, microwave and millimeter wave signal generation using beat-note generation from two lasers has attracted a gre... [more] | MW2014-86 pp.9-14 |
| MW, AP (Joint) |
2013-09-13 15:50 |
Tokyo | NHK Science Tech. Research Lab. | Generation of phase-controled microwave signal using optical phase modulator with τ-type optical path configuration Toshihide Tanigaki, Kohei Hagiwara, Tomoyuki Uehara, Kenichiro Tsuji, Noriaki Onodera (NDA) MW2013-98 |
High speed and precise phase control method of microwave and millimeter wave signal plays an important role in various ... [more] | MW2013-98 pp.59-64 |
| LQE | 2009-05-22 13:55 |
Toyama | Kanazawa Univ. | Frequency stabilization of laser diode to the 6S-8S two-photon transitions in Cs atoms in a vapor cell placed in an external cavity Tomoyuki Uehara, Kazuhiko Sugiyama (Grad. Sch. Kyoto Univ./JST), Koji Matsushita, Masataka Koizumi (Grad. Sch. Kyoto Univ.), Masao Kitano (Grad. Sch. Kyoto Univ./JST) LQE2009-11 |
We pursue ultimate high-stability obtained with the lasers frequency-stabilized to the absorption lines of atoms and mol... [more] | LQE2009-11 pp.55-58 |
| LQE, CPM, EMD, OPE | 2008-08-29 11:45 |
Miyagi | Touhoku Univ. | Oscillation frequency stabilization of a semiconductor laser by an indirect modulation method using the Faraday effect Akira Sato, Shinya Maehara (Graduate School of Science and Technology Niigata Uni.), Tomoyuki Uehara (Kyoto Uni.), Hideaki Arai, Takashi Sato, Tadashi Tamura, Masashi Ohkawa (Graduate School of Science and Technology Niigata Uni.), Seiji Kawamura (NAOJ) EMD2008-51 CPM2008-66 OPE2008-81 LQE2008-50 |
Research, using tandem satellites’ on-board tracking laser interferometers, is aimed at gauging the infinitesimal variat... [more] | EMD2008-51 CPM2008-66 OPE2008-81 LQE2008-50 pp.99-102 |
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