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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2024-01-19 11:10 |
Hyogo | (Primary: On-site, Secondary: Online) |
Study of chirp-division multiplexing in time-gated digital optical frequency domain reflectometry using a sinusoidally frequency-modulated light source Ichiki Tanimura, Masayuki Matsumoto (Wakayama Univ.)  OFT2023-62 |
Time-Gated Digital Optical Frequency Domain Reflectometry (TGD-OFDR) uses frequency-chirped optical pulses with time wid... [more] | OFT2023-62 pp.31-34 |
| OCS, OFT, IEE-CMN, ITE-BCT (Joint) [detail] |
2023-11-10 10:35 |
Kyoto | (Primary: On-site, Secondary: Online) |
High-accuracy distributed strain sensing based on low-coherence BOCDR: simulation and experimental validation Kenta Otsubo, Guangtao Zhu, Takaki Kiyozumi (YNU), Hiroshi Takahashi (YNU/NTT), Yusuke Koshikiya (NTT), Yosuke Mizuno (YNU) OFT2023-52 |
As a principle of distributed measurement of strain and temperature along an optical fiber, the strain/temperature depen... [more] | OFT2023-52 pp.24-29 |
| OFT | 2023-10-12 10:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Estimating spatial resolution in BOCDR using Rayleigh scattering Keita Kikuchi, Ryo Inoue (SIT), Kouta Ozaki (YNU), Haruki Sasage (SIT), Yosuke Mizuno (YNU), Heeyoung Lee (SIT) OFT2023-21 |
To determine the spatial resolution of Brillouin optical correlation-domain reflectometry (BOCDR), the measurement of mo... [more] | OFT2023-21 pp.23-26 |
| OFT | 2023-10-12 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Proposal of low-coherence BOCDR based on periodic noise modulation Kenta Otsubo, Takaki Kiyozumi (YNU), Hiroshi Takahashi (YNU/NTT), Yusuke Koshikiya (NTT), Yosuke Mizuno (YNU) OFT2023-30 |
As a principle of distributed measurement of strain and temperature along an optical fiber, the strain/temperature depen... [more] | OFT2023-30 pp.59-62 |
| ITE-BCT, OCS, IEE-CMN, OFT | 2022-11-11 11:00 |
Miyagi | Forest-Sendai (Primary: On-site, Secondary: Online) |
A trial on Brillouin Optical Correlation Domain Reflectometry using homodyne receiver Satoshi Matsuura, Yuta Suzuki, Yoshihiro Kumagai, Masayoshi Honma, Shin-ichiro Tezuka (Yokogawa Electric Corp.) OFT2022-41 |
Distributed strain and temperature sensing using optical fiber as a sensor is expected to be applied to applications suc... [more] | OFT2022-41 pp.20-25 |
| OFT | 2022-10-13 09:30 |
Kanagawa | Kanagawa-Kenmin Center (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Brillouin optical correlation-domain reflectometry using low-coherence light Kenta Otsubo (YNU), Kohei Noda (YNU/Tokyo Tech), Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU) OFT2022-19 |
As a principle of distributed measurement of strain and temperature along an optical fiber, the strain/temperature depen... [more] | OFT2022-19 pp.5-8 |
| 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 | 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, 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 | 2020-10-09 14:30 |
Online | Online | Interferometer based on photonic integrated circuit for optical frequency domain reflectometry Victor Shishkin, Akio Higo, Hideaki Murayama (UTokyo) OFT2020-34 |
We demonstrate an ultra-compact interferometer integrated on silicon photonic chip for distributed sensing using optical... [more] | OFT2020-34 pp.109-111 |
| OFT | 2020-10-09 14:55 |
Online | Online | Optical Time/Frequency Domain Reflectometry for Continuous Time-Domain Measurement of Rayleigh Backscattered Light Takafumi Tsuboya, Shiro Ryu (Meiji Univ.) OFT2020-35 |
It is not possible to measure high speed frequency fluctuations that occur in the optical transmission line because conv... [more] | OFT2020-35 pp.112-117 |
| OFT | 2020-10-09 15:20 |
Online | Online | Distributed measurement of polarization state using OCDR Kohei Noda (Tokyo Tech), Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech), Yosuke Mizuno (YNU) OFT2020-36 |
Optical fiber sensors have been extensively studied owing to their advantages such as long-range measurement, light weig... [more] | OFT2020-36 pp.118-121 |
| OFT, OCS, LSJ (Joint) [detail] |
2019-08-30 11:50 |
Hokkaido | Identification of sagging aerial cable section by distributed acoustic sensing based on OFDR for relative distance measurement Tatsuya Okamoto, Daisuke Iida, Hiroyuki Oshida (NTT) OFT2019-30 |
An installed optical fiber in optical communication system vibrates depending on its surrounding environment. A vibratio... [more] | OFT2019-30 pp.33-36 |
|
| 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]
Proposal of external modulation scheme for optical correlation-domain distributed sensors Kohei Noda, Giwoon Han, Heeyoung Lee, Yosuke Mizuno, Kentaro Nakamura (Tokyo Tech) OFT2018-44 |
All the configurations of optical correlation-domain reflectometry (OCDR) previously reported have been based on direct ... [more] | OFT2018-44 pp.141-144 |
| OFT | 2018-10-12 10:25 |
Miyagi | Touhoku Univ. | Spurious vibration compensation in distributed vibration sensing based on optical frequency domain reflectometry Tatsuya Okamoto, Daisuke Iida, Hiroyuki Oshida (NTT) OFT2018-51 |
Optical fiber installed in optical telecommunication system vibrates depending on the surrounding environment, and vibra... [more] | OFT2018-51 pp.171-174 |
| OFT, OCS, OPE (Joint) [detail] |
2016-02-19 12:05 |
Okinawa | Okinawa Univ. | Repeatability of local Rayleigh scatter signature over laser coherence length measured by C-OFDR Shingo Ohno, Daisuke Iida, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2015-69 OPE2015-234 |
Rayleigh scatter signature of optical fiber measured by coherent optical frequency domain reflectometry (C-OFDR) shows a... [more] | OFT2015-69 OPE2015-234 pp.79-84(OFT), pp.105-110(OPE) |
| OPE, OFT | 2012-03-02 10:30 |
Tokyo | Characterization of Polymer Optical Fiber Using Brillouin Scattering Signal Yosuke Mizuno (Tokyo Inst. of Tech.), Philipp Lenke, Katerina Krebber (BAM), Kentaro Nakamura (Tokyo Inst. of Tech.) OFT2011-75 OPE2011-201 |
We characterize the Brillouin gain spectra (BGS) in perfluorinated graded-index polymer optical fibers (PFGI-POFs) at 1.... [more] | OFT2011-75 OPE2011-201 pp.15-18 |
|
| OFT | 2011-10-20 16:25 |
Nagano | Measurement of Long-haul Optical Amplifier Submarine Cable System by Coherent OTDR Employing Frequency Division Multiplexing Hiroyuki Iida, Yusuke Koshikiya, Fumihiko Ito, Kuniaki Tanaka (NTT) OFT2011-38 |
We have proposed a high sensitivity coherent optical time domain reflectometry employing frequency division multiplexing... [more] | OFT2011-38 pp.35-40 |
|
| OFT, OCS (Joint) |
2011-08-26 14:55 |
Hokkaido | Centimeter-level spatial resolution over 40 km realized by bandwidth-division phase-noise-compensated OFDR Xinyu Fan, Yusuke Koshikiya, Fumihiko Ito (NTT) OFT2011-27 |
We present a bandwidth-division phase-noise-compensated optical frequency domain reflectometry (PNC-OFDR) technique, whi... [more] | OFT2011-27 pp.53-58 |
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