Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
OPE, OFT, OCS (Joint) [detail] |
2024-02-22 10:25 |
Okinawa |
Nobumoto Ohama Memorial Hall (Primary: On-site, Secondary: Online) |
A Study on Figure of Merit of Low loss Hole-Assisted Single-Mode optical Fiber Kouhei Omoto, Nobutomo Hanzawa, Takashi Matsui, Kazuhide Nakajima (NTT) OFT2023-75 OPE2023-127 |
We have reported that the Hole-Assist (HA) structure with a small diameter core and a low refractive index difference co... [more] |
OFT2023-75 OPE2023-127 pp.66-69(OFT), pp.107-110(OPE) |
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, OCS, LSJ (Joint) [detail] |
2023-08-25 09:55 |
Hokkaido |
(Primary: On-site, Secondary: Online) |
Continuous time-domain measurement method of Rayleigh backscattered light Shiro Ryu (Meiji Univ.) OFT2023-13 |
We have proposed a method that enables continuous measurement of backscattered light from a specific point of an optical... [more] |
OFT2023-13 pp.21-26 |
ITE-BCT, OCS, IEE-CMN, OFT |
2022-11-11 10:10 |
Miyagi |
Forest-Sendai (Primary: On-site, Secondary: Online) |
Observation of Rayleigh scattering by simplified optical correlation-domain reflectometry Tomoya Miyamae, Guangtao Zhu, Takaki Kiyozumi (YNU), Kohei Noda (Tokyo Tech/YNU), Heeyoung Lee (SIT), Kentaro Nakamura (Tokyo Tech/YNU), Yosuke Mizuno (YNU) OFT2022-39 |
Recent rapid growth of optical fiber communication has led to a significant demand for health monitoring technology of o... [more] |
OFT2022-39 pp.11-14 |
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 |
OPE, OFT, OCS (Joint) [detail] |
2022-02-24 15:05 |
Online |
Online |
[Invited Talk]
Suppression of Rayleigh scattering loss in silica glass by hot-compression
-- The role of structural voids in silica glass -- Madoka Ono (Hokkaido Univ.) OCS2021-41 OPE2021-52 |
Optical losses in silica glass fibers remain a challenge in their applications. The main contributor to optical attenuat... [more] |
OCS2021-41 OPE2021-52 pp.1-4(OCS), pp.17-20(OPE) |
EA, US (Joint) |
2021-12-22 15:50 |
Kumamoto |
Sojo University |
[Poster Presentation]
Study on the intensity of Rayleigh and Brillouin scattering in liquids Shuto Inamoto, Keita Yano, Mami Matsukawa (Doshisha Univ.) US2021-56 |
The Landau-Placzek ( L-P ) ratio can be estimated from the intensity ratio of Brillouin and Rayleigh scatterings. This L... [more] |
US2021-56 pp.47-50 |
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, OCS, LSJ (Joint) [detail] |
2021-08-26 14:45 |
Online |
Online |
A method for continuously measuring backscattered light at an arbitrary point on an optical fiber Shiro Ryu (Meiji Univ.), Takafumi Tsuboya (SECOM) OFT2021-14 |
We have proposed a continuous measurement method for Rayleigh backscattered light in the time domain at any point on the... [more] |
OFT2021-14 pp.13-18 |
OFT, OCS, IEE-CMN, ITE-BCT [detail] |
2017-11-24 09:30 |
Osaka |
Kansa-Univ. Umeda Campus |
Distributed Spatial Mode Dispersion Measurement along Strongly Coupled Multicore Fiber Using Rayleigh Backscattering Interference Pattern Shingo Ohno, Kunihiro Toge, Daisuke Iida, Tetsuya Manabe (NTT) OFT2017-48 |
Strongly coupled multicore fiber (SC-MCF) has been proposed for realizing spatial division multiplexing transmission. In... [more] |
OFT2017-48 pp.23-28 |
OFT, OCS, OPE (Joint) [detail] |
2016-02-18 10:20 |
Okinawa |
Okinawa Univ. |
Numerical simulation on fiber-optic distributed dynamic-strain sensing with coherent OTDR Yahei Koyamada, Mitsuharu Shiwa (NIMS), Kinzo Kishida (Neubrex) OFT2015-58 OPE2015-218 |
To investigate a potential application of the coherent OTDR in the field of measuring distributed dynamic strain or dete... [more] |
OFT2015-58 OPE2015-218 pp.17-22 |
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) |
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 |
US |
2015-06-19 12:55 |
Kumamoto |
Kumamoto University |
Estimation accuracy of quantitative diagnostic method for liver fibrosis considering nonspeckle signals in ultrasound B-mode image of clinical data Shohei Mori, Shinnosuke Hirata (Tokyo Tech), Tadashi Yamaguchi (Chiba Univ.), Hiroyuki Hachiya (Tokyo Tech) US2015-17 |
A quantitative diagnostic method for liver fibrosis using a multi-Rayleigh model which is a model of a probability densi... [more] |
US2015-17 pp.7-12 |
MW |
2013-12-19 14:00 |
Saitama |
Saitama Univ. |
Microwave Scattering from Simplified Leaf Structures Paul Jason Co, Jun-Ichi Takada (Tokyo Tech) MW2013-158 |
The microwave scattering from simplified leaf structures are investigated. Leaves are modeled as thin dielectric disks a... [more] |
MW2013-158 pp.41-45 |
OFT |
2013-01-24 14:55 |
Tokushima |
|
Numerical simulation of fiber-optic distributed temperature measurement Masahiro Miyamoto, Taku Itou, Shigeki Takeda, Hisashi Izumita, Yahei Koyamada (Ibaraki Univ.) OFT2012-56 |
Numerical simulations were conducted to investigate the ability of a sensing system based on a coherent OTDR with a prec... [more] |
OFT2012-56 pp.19-24 |
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 |
OFT |
2011-10-20 13:00 |
Nagano |
|
Scattering loss properties of holey fibers Kyozo Tsujikawa, Shigeru Tomita (NTT) OFT2011-31 |
It has been reported that additional scattering loss often arises in holey fibers, namely photonic crystal fiber (PCF) a... [more] |
OFT2011-31 pp.1-6 |
OFT, OCS (Joint) |
2011-08-26 14:05 |
Hokkaido |
|
Fiber-Optic Distributed Temperature Measurement With Very High Resolution Over Long Range Based on Rayleigh Backscatter Traces Obtained With Coherent OTDR Akio Togo, Yuta Iitsuka, Ryosuke Shimano, Hisashi Izumita, Yahei Koyamada (Ibaraki Univ.) OFT2011-25 |
Experiments and numerical simulations were conducted to find a possible performance of a technique for measuring distrib... [more] |
OFT2011-25 pp.43-48 |
OFT, OCS (Joint) |
2011-08-26 14:30 |
Hokkaido |
|
Distributed vibration ditection with very high sensitivity using coherent OTDR Yuta Iitsuka, Akio Togo, Hisashi Izumita, Yahei Koyamada (Ibaraki Univ.) OFT2011-26 |
This paper presents some experimental results on the distributed vibration detection along a fiber based on the Rayleigh... [more] |
OFT2011-26 pp.49-52 |