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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2022-10-13 09:30 |
Kanagawa | Kanagawa-Kenmin Center (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Extension of measurement range in OCDR based on double-modulation scheme Mana Sakamoto (YNU/SIT), Tomoya Miyamae (YNU), Kohei Noda (YNU/Tokyo Tech), Kentaro Nakamura (Tokyo Tech), Heeyoung Lee (SIT), Yosuke Mizuno (YNU)  OFT2022-20 |
For the past several decades, as a promising method for monitoring the soundness of optical fiber communication networks... [more] | OFT2022-20 pp.9-12 |
| US | 2022-08-22 16:05 |
Tokyo | Tokyo Tech (Ookayama Campus) | Analysis of seismic data obtained with fiber optic distributed acoustic sensor Takahiro Arioka, Kentaro Nakamura (Tokyo Tech) US2022-34 |
Distributed acoustic sensor (DAS) observes the intensity and phase of Rayleigh backscattered light to measure the strain... [more] | US2022-34 pp.29-33 |
| OFT | 2021-10-14 10:30 |
Online | Online | [Poster Presentation]
Attempt to optimize delay fiber length in BOCDR Mana Sakamoto, Haruki Sasage (SIT), Kohei Noda (Tokyo Tech/YNU), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU), Heeyoung Lee (SIT) OFT2021-26 |
Brillouin optical correlation-domain reflectometry (BOCDR) is known as a distributed strain and temperature sensing tech... [more] | OFT2021-26 pp.19-22 |
| OFT | 2021-10-14 13:00 |
Online | Online | [Poster Presentation]
Strain dynamic range extension in slope-assisted BOCDR based on down-conversion of Brillouin frequency shift Haruki Sasage, Mana Sakamoto (SIT), Kohei Noda (Tokyo Tech/YNU), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU), Heeyoung Lee (SIT) OFT2021-36 |
Brillouin optical correlation-domain reflectometry (BOCDR) is known as a distributed strain and temperature sensing tech... [more] | OFT2021-36 pp.59-62 |
| OFT | 2021-10-14 14:30 |
Online | Online | A Consideration of Seismic Detection with Distributed Acoustic Sensor using Image Processing and Recognition Takahiro Arioka, Kentaro Nakamura (Tokyo Tech) OFT2021-42 |
Distributed acoustic sensor (DAS) observes the intensity and phase of Rayleigh backscattered light to measure the strain... [more] | OFT2021-42 pp.79-84 |
| 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 |
| PN | 2021-03-01 16:15 |
Online | Online | [Invited Talk]
High-performance distributed sensing based on Brillouin scattering in optical fibers Yosuke Mizuno (YNU), Kohei Noda (Tokyo Tech/YNU), Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech) PN2020-47 |
We review fiber-optic distributed Brillouin sensing technology, focusing on Brillouin optical correlation-domain reflect... [more] | PN2020-47 pp.30-37 |
| OPE, OCS, OFT (Joint) [detail] |
2021-02-19 13:00 |
Online | Online | [Invited Talk]
Displacement measurement based on fiber optic system Yosuke Tanaka (Tokyo Univ. of Agir. and Tech.) OFT2020-68 OPE2020-89 |
The optical systems including optical interferometers and intensity correlators play an important role in optical measur... [more] | OFT2020-68 OPE2020-89 pp.58-61(OFT), pp.63-66(OPE) |
| OFT, ITE-BCT, OCS, IEE-CMN [detail] | 2020-11-12 13:20 |
Online | Online | [Invited Talk]
Recent trends of slope-assisted BOCDR Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU) OFT2020-37 |
Brillouin optical correlation-domain reflectometry (BOCDR) is one of the fiber-optic Brillouin-based distributed sensing... [more] | OFT2020-37 pp.1-6 |
| OFT | 2019-05-16 14:00 |
Osaka | Ｉ-site NANBA | [Poster Presentation]
External modulation scheme for Brillouin OCDR Kohei Noda, Heeyoung Lee, Yosuke Mizuno, Kentaro Nakamura (Tokyo Tech) OFT2019-2 |
All the configurations of Brillouin optical correlation-domain reflectometry (Brillouin OCDR; BOCDR) previously reported... [more] | OFT2019-2 pp.7-10 |
| OFT | 2018-10-11 16:00 |
Miyagi | Touhoku Univ. | [Poster Presentation]
Long-range distributed sensing based on slope-assisted BOCDR Heeyoung Lee, Yosuke Mizuno, Kentaro Nakamura (Tokyo Tech) OFT2018-45 |
To measure strain, temperature and loss distributions along optical fibers, recently, we developed a new structural heal... [more] | OFT2018-45 pp.145-148 |
| OFT | 2018-10-11 16:00 |
Miyagi | Touhoku Univ. | [Poster Presentation]
Effect of distributed load on BGS-based ring circumferential strain measurement Kento Nishimura, Shusuke Narieda, Hiroshi Naruse (Mie Univ.) OFT2018-47 |
We have proposed a method for measuring a ring circumferential strain. In this method, the model of a Brillouin gain spe... [more] | OFT2018-47 pp.153-156 |
| OPE, OCS, OFT (Joint) [detail] |
2018-02-15 16:25 |
Okinawa | Okinawa Prefectural Museum | Health monitoring of optical-fiber-embedded composite structure using slope-assisted BOCDR Heeyoung Lee, Sonoko Hagiwara (Tokyo Tech), Yutaka Ochi, Takahiro Matsui (Toray), Yukihiro Matsumoto (TUT), Yosuke Tanaka (TUAT), Hitoshi Nakamura (TMU), Yosuke Mizuno, Kentaro Nakamura (Tokyo Tech) OFT2017-71 OPE2017-175 |
Slope-assisted Brillouin optical correlation-domain reflectometry (SA-BOCDR) is a recently developed structural health m... [more] | OFT2017-71 OPE2017-175 pp.11-16(OFT), pp.29-34(OPE) |
| OFT, OCS, LSJ (Joint) [detail] |
2017-08-31 13:40 |
Hokkaido | Hokkaido Univ. | Detection of shortest-ever strain by slope-assisted BOCDR Heeyoung Lee, Yosuke Mizuno, Kentaro Nakamura (Tokyo Inst. of Tech.) OFT2017-25 |
To enable high-speed distributed strain/temperature measurement along optical fibers, we have developed a new configurat... [more] | OFT2017-25 pp.5-8 |
| OFT | 2017-05-25 14:30 |
Shimane | Shimane Univ. (Matsue campus) | Simplified and high speed BOTDA employing frequency-swept pulses Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2017-2 |
In recent years, research on optical measurement technology using Brillouin scattering capable of measuring temperature ... [more] | OFT2017-2 pp.7-10 |
| ASN | 2016-05-13 10:00 |
Tokyo | The evaluation of bridges by distributed area sensors Kejian Yang (KKE) ASN2016-12 |
Distributed sensing system developed by the authors for flexural structure using strain measurements from long-gage fibe... [more] | ASN2016-12 pp.59-62 |
|
| MW | 2014-12-18 16:40 |
Tokyo | Aoyama Gakuin Univ. Aoyama Campus | Simplified Channel Modeling for Distributed Channel Sounder Tossaporn Srisooksai, Jun-ichi Takada (Tokyo Inst. of Tech.) MW2014-163 |
To implement cooperative algorithms in distributed wireless network (DWN), the correlation model of distributed channels... [more] | MW2014-163 pp.81-86 |
| 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 |
|
| OFT | 2013-01-24 14:30 |
Tokushima | Improvement of receiver sensitivity and elongation of measurement range in double-pulse BOTDR Masahiro Kumoda, Yusuke Anzai, Satoshi Matsuura, Yahei Koyamada (Ibaraki Univ.) OFT2012-55 |
The receiver sensitivity of the double-pulse BOTDR was improved by 7 dB by shifting frequency band for the Brillouin sca... [more] | OFT2012-55 pp.13-18 |
|
| OFT | 2013-01-24 15:20 |
Tokushima | Measurement range enlargement in fiber-optic distributed strain and temperature sensing by coherent OTDR Akio Togo, Tomoaki Sudo, Hisashi Izumita, Yahei Koyamada (Ibaraki Univ.), Li Che-Hsien, Kinzo Kishida (Neubrex) OFT2012-57 |
We extended measurand range of a coherent OTDR by introducing a fully tunable DFB laser whose optical frequency can be p... [more] | OFT2012-57 pp.25-30 |
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