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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]
Application of distributed fiber-optic strain sensing to detection rock fracture Tianjun Zhang, Makito Kobayashi (UTokyo), Takumi Nakashima, Kotaro Fujiwara, Michio Imai, Hideki Nagatani, Yasuyuki Miyajima, Junichi Kawabata (KAJIMA), Hideaki Murayama (UTokyo)  OFT2023-17 |
When excavating large underground cavities such as tunnels and underground power stations, there is a risk of rockfall d... [more] | OFT2023-17 pp.7-10 |
| OFT | 2023-10-12 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Return Loss Measurement of Silicone Fluids with a Wide Range of Refractive Indices Using an MT Connector Type Fiber Fabry-Perot Optical Sensor Ryoki Soeda, Mitsuru Kihara (Osaka Electro-Communication Univ.) OFT2023-29 |
This paper discusses the return-loss measurement of silicone oil with a wide range of refractive indices using an MT con... [more] | OFT2023-29 pp.55-58 |
| OFT | 2023-10-12 15:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Simultaneous Measurement of Strain and Temperature Distribution Using Different Doped Fibers
-- Evaluating an Impact of Misaligned Measurement Positions of Wavelength Shift Data on Simultaneous Measurement -- Mami Uchida (UT), Shinsaku Hisada, Daichi Wada, Hirotaka Igawa (JAXA), Hideaki Murayama (UT) OFT2023-40 |
Simultaneous measurements of strain and temperature distributions were conducted using OFDR and FBG sensors, which were ... [more] | OFT2023-40 pp.97-100 |
| OCS, OFT, OPE (Joint) [detail] |
2023-02-17 16:00 |
Okinawa | kukuru-itomancity (Primary: On-site, Secondary: Online) |
Transmission loss characteristics of aqueous solutions with refractive index of higher than 1.45 using microfiber Ryoki Soeda, Mitsuru Kihara (oecu) OFT2022-64 OPE2022-119 |
Our goal is to realize a sensor that can measure the turbidity of river water for river management using microfibers. We... [more] | OFT2022-64 OPE2022-119 pp.63-66(OFT), pp.124-127(OPE) |
| OFT | 2022-10-13 10:50 |
Kanagawa | Kanagawa-Kenmin Center (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Characterization and fabrication of refractive index sensors using microfibers Ryoki Soeda, Mitsuru Kihara (Osaka Electro-Communication Univ.) OFT2022-29 |
The goal of this study is to realize a sensor that can measure the turbidity of a river using microfibers, which is used... [more] | OFT2022-29 pp.43-46 |
| OPE, OFT, OCS (Joint) [detail] |
2022-02-24 13:15 |
Online | Online | Structural analysis and fabrication of microfibers for load measurement Naoaki Abe, Ryoki Soeda, Mitsuru Kihara (oecu) OFT2021-69 OPE2021-48 |
We investigate load measurement using microfiber. We numerically analyzed the transmission loss characteristics of the m... [more] | OFT2021-69 OPE2021-48 pp.1-4 |
| OFT | 2021-10-14 10:30 |
Online | Online | [Poster Presentation]
Taper structure dependence of transmission loss of microfiber for measuring refractive index of aqueous solution Naoaki Abe, Mitsuru Kihara (OECU) OFT2021-24 |
We numerically analyzed the transmission loss characteristics due to the shortest waist length and angle of the tapered ... [more] | OFT2021-24 pp.13-16 |
| OPE, OCS, OFT (Joint) [detail] |
2021-02-18 14:50 |
Online | Online | Analysis of microfiber structures for fabricating multimode interference sensors Naoaki Abe, Mitsuru Kihara (OECU) OFT2020-58 OPE2020-78 |
We theoretically investigated microfiber characteristics. We numerically analyzed the transmission characteristics due t... [more] | OFT2020-58 OPE2020-78 pp.13-16 |
| OFT | 2020-10-08 10:00 |
Online | Online | [Poster Presentation]
Study on fabrication condition and transmission loss characteristics of multimode interference sensors using microfibers Naoaki Abe, Mitsuru Kihara (OECU) OFT2020-12 |
This paper reports fabrication condition and performance of multimode interference sensors as an application of microfib... [more] | OFT2020-12 pp.13-16 |
| OCS, OFT, OPE (Joint) [detail] |
2020-02-27 13:40 |
Okinawa | Okinawa Jichikaikan | Fiber-optic Fabry-Perot sensor using MT connectors for measuring refractive index of aqueous solutions Mitsuru Kihara, Satoshi Hirata, Atsushi Ikeda, Toshiaki Mori (OECU) OFT2019-60 OPE2019-99 |
We propose an optical fiber sensor for measuring the refractive index of aqueous solutions. The proposed sensor is based... [more] | OFT2019-60 OPE2019-99 pp.5-8 |
| OFT, OCS (Joint) |
2015-08-28 09:50 |
Hokkaido | Fabrication of Fiber-Optic Distributed Acoustic Sensor and Its Signal Processing Ken'ichi Nishiguchi (Osaka Univ.), Li Che-Hsien, Artur Guzik, Mitsunori Yokoyama, Kinzo Kishida (Neubrex) OFT2015-21 |
We fabricated a fiber-optic distributed acoustic sensing (DAS) system using a narrow linewidth laser. DAS systems are cl... [more] | OFT2015-21 pp.29-34 |
|
| OCS, OFT, ITE-BCT, IEE-CMN (Joint) [detail] |
2013-11-21 15:50 |
Niigata | Nagaoka University of Technology | Study on input-output light characteristics through a side-surface of an optical fiber Makoto Tsubokawa (Waseda Univ.) OFT2013-40 |
We have newly designed fiber-optic light devices with Mie scattering parts to collect and emit lights through their side... [more] | OFT2013-40 pp.19-24 |
| US | 2011-11-24 11:25 |
Shizuoka | Tokai Univ. | Wide Dynamic-Range Fiber-Optic Hydrophone Ryotaku Sato (OKI) US2011-68 |
For the sonar used in the noise, wide dynamic-range good linearity hydrophone is suitable. The author constructs a fiber... [more] | US2011-68 pp.15-20 |
| OCS, OFT (Joint) |
2010-08-26 17:45 |
Hokkaido | Asahikawa Tokiwa Shimin Hall | Brillouin scattering in polymer optical fiber Yosuke Mizuno, Kentaro Nakamura (Tokyo Inst. of Tech.) OCS2010-44 |
Brillouin scattering properties in a perfluorinated graded-index polymer optical fiber (POF) with 120-um core diameter w... [more] | OCS2010-44 pp.47-52 |
| OFT | 2009-05-29 10:20 |
Shizuoka | High-Speed Distributed Sensing Based on Brillouin Optical Correlation Domain Analysis Weiwen Zou, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2009-13 |
A novel method is proposed to realize high-speed distributed sensing based on Brillouin optical correlation domain analy... [more] | OFT2009-13 pp.61-66 |
|
| OFT, OPE | 2009-03-06 13:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Stable entire-length measurement of fiber strain distribution by Brillouin optical correlation-domain reflectometry with polarization scrambling Yosuke Mizuno, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2008-93 OPE2008-193 |
Recently we have proposed a Brillouin optical correlation-domain reflectometry (BOCDR) to measure the distribution of st... [more] | OFT2008-93 OPE2008-193 pp.31-38 |
| OCS, OFT (Joint) |
2008-08-29 10:55 |
Hokkaido | Fiber-Optic Brillouin Distributed Discrimination of Strain and Temperature Using Correlation-Based Continuous-Wave Technique Weiwen Zou, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2008-28 |
This paper presents the first successful demonstration of distributed discrimination of strain and temperature with cm-o... [more] | OFT2008-28 pp.61-64 |
|
| OFT | 2008-05-15 16:40 |
Osaka | [Special Invited Talk]
Studies on scattering of lightwave in single-mode fibers and fiber-optic distributed strain and temperature sensors Yahei Koyamada (Ibaraki Univ.) OFT2008-8 |
This paper outlines our recent work on the simulation and design of Brillouin gain spectrum in single-mode fibers, doubl... [more] | OFT2008-8 pp.33-38 |
|
| OFT, OCS (Joint) |
2007-08-24 13:25 |
Hokkaido | Optical Fiber Design for Brillouin-scattering-Based Discriminative Sensing of Strain and Temperature Weiwen Zou, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2007-30 |
We demonstrate the theoretical analysis of Brillouin gain spectra (BGS) in high-delta fibers with F-doped inner cladding... [more] | OFT2007-30 pp.89-94 |
|
| OPE | 2006-02-17 13:25 |
Tokyo | A novel distributed strain sensor by synthesizing a dynamic grating in polarization maintaining erbium-doped fiber: Experimental demonstration Xinyu Fan, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) |
We demonstrate experimentally a novel distributed fiber-optic strain sensor by localizing a dynamic grating in polarizat... [more] | OPE2005-147 pp.7-12 |
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