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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2023-10-12 10:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Error evaluation of slope-assisted BOTDA using virtually synthesized Brillouin gain spectrum Daichi Sei, Hayato Nonogaki (TUAT), Mohd Saiful Dzulkefly Bin Zan (UKM), Yosuke Tanaka (TUAT)  OFT2023-19 |
In this study, we demonstrate that slope-assisted (SA) BOTDA using VBGS (Virtual Brillouin gain spectrum) composed both ... [more] | OFT2023-19 pp.15-18 |
| OFT | 2023-10-12 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Brillouin frequency shift measurement based on zero-crossing point search in virtually composed spectra of Brillouin gain and loss Hayato Nonogaki, Daichi Sei (Tokyo Univ. of Agri. & Tech.), Mohd Saiful Dzulkefly Bin Zan (UKM), Yosuke Tanaka (Tokyo Univ. of Agri. & Tech.) OFT2023-28 |
We demonstrate a method for fast and precise measurement of Brillouin frequency shift by searching for the zero-crossing... [more] | OFT2023-28 pp.51-54 |
| OFT | 2023-10-13 14:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Consideration of measurement ability improvement about broadband light probe BOTDA. Takahiro Ishimaru, Yoshifumi Wakisaka, Hiroshi Takahashi, Yusuke Koshikiya (NTT) OFT2023-44 |
In recent years, optical fiber distributed vibration measurement based on Brillouin scattering, which can measure large ... [more] | OFT2023-44 pp.111-114 |
| 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 | 2013-10-25 09:25 |
Nara | [Fellow Memorial Lecture]
Techniques to evaluate optical fiber cables and to sense distributed strain and temperature based on Brillouin scattering Tsuneo Horiguchi (Shibaura Inst. of Tech.) OFT2013-33 |
Brillouin scattering usually degrades the quality of signals in optical fiber communication systems. On the other hand, ... [more] | OFT2013-33 pp.51-56 |
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| OFT | 2010-05-28 10:05 |
Hiroshima | tomo-kouminkan | PPP-BOTDA system capable of in-the-field distributed fiber sensing with 2cm spatial resolution Li Che-Hsien, Tsutomu Tsuda, Artur Guzik, Miyuki Miyatake, Atushi Makita, Hirokazu Takano, Kinzo Kishida (NEUBREX) OFT2010-12 |
The paper presents enhanced Pulse-Pre-Pump Brillouin Optical Time Domain Analysis (PPP-BOTDA) method, capable of achievi... [more] | OFT2010-12 pp.57-62 |
| OFT | 2010-01-21 13:50 |
Okinawa | Signal to Noise Improvement Ratio for Coded PSP-BOTDA Daisuke Uchiyama, Tsuneo Horiguchi, Hiroshi Ando, Yoko Okumoto, Atsushi Kato, Takashi Sasaki, Yu Sawai (Shibaura-Inst. of Tech.) OFT2009-68 |
We study Coded Phase Shift Pulse Brillouin Optical-fiber Time Domain Analysis (Coded PSP-BOTDA) for the measurement of d... [more] | OFT2009-68 pp.33-38 |
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| OFT | 2008-10-17 14:55 |
Tokyo | PPP-BOTDA method to achieve 10cm spatial resolution and 10Hz measuring speed in distributed sensing Li Che-Hsien, Tsutomu Tsuda, Takahiro Sawa, Atushi Makita, Hirokazu Takano, Kinzo Kishida (NEUBREX), Zhishen Wu (Ibaraki University), Nobuo Takeda, Shu Minakuchi (Tokyo University) OFT2008-42 |
The Pulse-Pre-Pump Brillouin Optical Time Domain Analysis (PPP-BOTDA) method is capable of achieving 2cm spatial resolut... [more] | OFT2008-42 pp.39-44 |
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| OFT | 2008-05-16 10:55 |
Osaka | PPP-BOTDA method to achieve 2cm spatial resolution in Brillouin distributed meagsuring technique Li Che-Hsien, Kenichi Nishiguchi, Miyuki Miyatake, Atushi Makita, Mitsunori Yokoyama, Kinzo Kishida (NB), Tadahito Mizutani, Nobuo Takeda (Univ. of Tokyo) OFT2008-13 |
PPP-BOTDA (Pulse-PrePump Brillouin Optical Time Domain Analysis) method was published in previous work and the possibili... [more] | OFT2008-13 pp.55-60 |
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| OPE, OFT | 2008-03-07 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Sophistication of pulse-prepump method for Brillouin distributed optical fiber sensors Ken'ichi Nishiguchi (Osaka Univ.), Kinzo Kishida, Li Che-Hsien (Neubrex), Zhishen Wu (Ibaraki Univ.) OFT2007-68 OPE2007-187 |
An accuracy improvement method for Brillouin distributed sensing system is proposed. We previously proposed a high-resol... [more] | OFT2007-68 OPE2007-187 pp.33-38 |
| OFT, OCS (Joint) |
2005-08-25 13:05 |
Akita | Akita Univ. | PPP-BOTDA method to achieve cm-order spatial resolution in Brillouin distributed measuring technique Li Che-Hsien, Tsutomu Tsuda, Kinzo Kishida (NEUBREX) |
Principle of Pulse Pre-Pump(PPP) method was published in our previous work. The possibility of access both high spatial ... [more] | OFT2005-16 pp.1-6 |
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