Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
PN |
2025-03-04 13:00 |
Okinawa |
(Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Evaluation of optical fibers using linear optical sampling and application to LiDAR Chao Zhang, Kyogo Osawa, Akira Izumoto, Takahiro Suyama, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Shingo Ohno, Kunihiro Toge (NTT) |
[more] |
|
OFT |
2025-01-23 14:40 |
Osaka |
(Osaka, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Statistical Analysis of Spatial Mode Dispersion of Coupled 4-Core Fiber
-- Comparison of fixed analyzer method and linear optical sampling -- Kyogo Osawa, Akira Izumoto, Takahiro Suyama, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Shingo Ohno, Kunihiro Toge (NTT) OFT2024-92 |
[more] |
OFT2024-92 pp.45-48 |
OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 15:25 |
Kochi |
(Kochi) |
Evaluation of concrete structures with OFDR and developments towards on-site testing Yuichi Yoshimura, Devin Gunawan, Shintaro Kojima, Yuki Yokota, Michio Imai (Kajima), Chao Zhang, Fumihiko Ito (Shimane Univ.) OFT2024-69 |
Distributed fiber optic sensing is actively utilized for the efficient, rational construction and maintenance management... [more] |
OFT2024-69 pp.5-8 |
OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 16:00 |
Kochi |
(Kochi) |
[Invited Talk]
Assessing water position in porous media through distributed temperature sensing using Phase-noise-compensated optical frequency domain reflectometry Tetsuya Kogure (Kyoto Univ.), Ashis Acharya, Daiki Tanimura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Toshihiro Sakaki (ESE), Mitsuru Komatsu (Okayama Univ.), Issei Doi (Kyoto Univ.) OFT2024-70 |
Assessing groundwater migration or groundwater position is critical in elucidating the slope-formation process or in pre... [more] |
OFT2024-70 pp.9-12 |
OFT |
2024-10-10 10:10 |
Tokyo |
(Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Remote strain measurement by using PNC-OFDR through optical fiber for data communication Sakuya Hara, Keigo Nakao, Ryota Ogu, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (Kajima Corp.) OFT2024-35 |
When optical fiber sensing is applied to the monitoring of structures during construction and service, there are situati... [more] |
OFT2024-35 pp.13-17 |
OFT |
2024-10-10 13:20 |
Tokyo |
(Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Long distance dynamic strain measurement by using phase-noise-compensated OFDR Ryota Ogu, Keigo Nakao, Sakuya Hara, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (Kajima Corp.) OFT2024-44 |
We performed dynamic strain measurements over 1-km distance using phase-noise-compensated optical frequency domain refle... [more] |
OFT2024-44 pp.55-59 |
OFT, OCS, LSJ (Joint) [detail] |
2023-08-25 10:55 |
Hokkaido |
(Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Ultrafast Measurement of Spatial Modes employing Two-dimensional Linear Optical Sampling Shuki Okamura, Kyogo Osawa, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Yusuke Koshikiya (NTT) OFT2023-14 |
With the combination of linear optical sampling a low-speed photodiode array, we measured the two-dimensional complex am... [more] |
OFT2023-14 pp.27-31 |
ITE-BCT, OCS, IEE-CMN, OFT |
2022-11-11 14:15 |
Miyagi |
Forest-Sendai (Miyagi, Online) (Primary: On-site, Secondary: Online) |
Time-resolve constellation monitoring of quadrature amplitude modulation optical signals with time-and-frequency slicing-and-synthesizing method Tsubasa Fujiwara, Koji Igarashi (Osaka Univ), Fumihiko Ito (Shimane Univ) OCS2022-47 |
In coherent transmission systems, we require simple constellation monitoring of quadrature amplitude modulation (QAM) op... [more] |
OCS2022-47 pp.41-45 |
OFT |
2022-10-13 09:30 |
Kanagawa |
Kanagawa-Kenmin Center (Kanagawa, Online) (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 |
2022-10-13 10:50 |
Kanagawa |
Kanagawa-Kenmin Center (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Bandwidth-by-band Measurement of Spatial-Mode Dispersion of Coupled 2-Core and 4-Core Fibers employing Linear Optical Sampling Shuki Okamura, Masafumi Uyama, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Tatsuya Okamoto, Yusuke Koshikiya (NTT) OFT2022-30 |
The impulse responses of coupled 2-core and 4-core fibers with various fiber lengths were measured over a wide bandwidth... [more] |
OFT2022-30 pp.47-52 |
OCS, OFT, LSJ (Joint) [detail] |
2022-08-25 15:10 |
Online |
Online (Online) |
EDF laser displacement sensor based on bending characteristics of cascaded-chirped long-period fiber grating Koken Fukushima, Makoto Okano, Atsushi Wada, Satoshi Tanaka (NDA), Fumihiko Ito (Shimane Univ.) OFT2022-9 |
We have constructed an EDF laser in a sigma cavity configuration (EDFσL) using a double-pass cascaded-chirped long-perio... [more] |
OFT2022-9 pp.16-21 |
OFT |
2022-05-13 14:00 |
Aomori |
Aomori-Aspm Bldg (Aomori, Online) (Primary: On-site, Secondary: Online) |
Measurement of Spatial-Mode Dispersion of Coupled 2-Core Fiber employing Linear Optical Sampling Masafumi Uyama, Shuki Okamura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Atsushi Nakamura, Tatsuya Okamoto, Yusuke Koshikiya (NTT) OFT2022-3 |
The spatial mode dispersion of two types of coupled multicore fibers, one with a homogeneous core and the other with a h... [more] |
OFT2022-3 pp.11-15 |
OFT |
2021-10-14 10:30 |
Online |
Online (Online) |
[Poster Presentation]
Mutual interference suppression for FMCW LiDAR Akifumi Soma, Shota Araishi, Sougo Shimizu, Chao Zhang, Fumihiko Ito (Shimane Univ.) OFT2021-27 |
In this article, we outline mutual interference in frequency-modulated continuous-wave LiDAR and proposes a suppression ... [more] |
OFT2021-27 pp.23-28 |
OPE, OCS, OFT (Joint) [detail] |
2021-02-18 14:00 |
Online |
Online (Online) |
EDF laser using cascaded-chirped long period fiber grating in sigma configuration and its application to temperature sensing Koken Fukushima, Manuel Guterres Soares, Koki Nakaya, Atsushi Wada, Satoshi Tanaka (NDA), Fumihiko Ito (Shimane Univ.) OFT2020-56 OPE2020-76 |
We have constructed an EDF sigma laser (EDF$sigma$L) that employs a wavelength selection element consisting of a cascade... [more] |
OFT2020-56 OPE2020-76 pp.5-8 |
OPE, OCS, OFT (Joint) [detail] |
2021-02-19 10:50 |
Online |
Online (Online) |
Ultrafast measurement of complex modulation over entire C-band by using linear optical sampling Sougo Shimizu, Kaito kadobe, Fumihiko Ito (Shimane Univ.) OFT2020-65 OPE2020-86 |
[more] |
OFT2020-65 OPE2020-86 pp.44-49(OFT), pp.49-54(OPE) |
OFT, ITE-BCT, OCS, IEE-CMN [detail] |
2020-11-13 14:55 |
Online |
Online (Online) |
Notchless spectra realized by Brillouin optical correlation domain analysis using pulse train arranged at power intervals Daiki Miyake, Yudai Hattori, Fumihiko Ito (Shimane Univ.) OFT2020-41 |
A signal using pulse trains arranged at power intervals applicable to the correlation domain analysis is proposed. The a... [more] |
OFT2020-41 pp.21-26 |
OFT |
2020-10-08 09:10 |
Online |
Online (Online) |
[Poster Presentation]
Fabrication and elastic strain characteristics of cascaded long period fiber gratings Manuel Guterres Soares*, Koken Fukushima, Koki Nakaya, Atsushi Wada, Satoshi Tanaka (NDA), Fumihiko Ito (Shimane Univ.) OFT2020-11 |
We have proposed temperature and strain sensors based on cascaded chirped long period fiber gratings (C-CLPGs), which ar... [more] |
OFT2020-11 pp.8-12 |
OFT |
2020-10-08 14:25 |
Online |
Online (Online) |
[Tutorial Invited Lecture]
Research trends in optical fiber technologies
-- Review of last 10 years -- Fumihiko Ito (Shimane Univ.) OFT2020-24 |
The trend of optical fiber technology researches is overviewed by looking back on the activity of this research committe... [more] |
OFT2020-24 pp.60-61 |
OFT |
2020-05-15 09:00 |
Aomori |
Aomori Tourist Information Center ASPAM (Aomori) (Cancelled but technical report was issued) |
EDF ring laser using cascaded-chirped long period fiber grating and its application to temperature sensing Koken Fukushima, Bui Quoc Hung, Koki Nakaya, Manuel Guterres Soares, Atsushi Wada, Satoshi Tanaka (NDA), Fumihiko Ito (Shimane Univ.) OFT2020-1 |
We have proposed a novel erbium-doped fiber ring laser (EDFRL) using a cascaded-chirped long period fiber grating (C-CLP... [more] |
OFT2020-1 pp.1-4 |
OCS, ITE-BCT, OFT, IEE-CMN [detail] |
2019-11-22 09:55 |
Yamaguchi |
Kaikyo-Messe-Shimonoseki (Yamaguchi) |
Comb-like Brillouin spectrum generated by pulse train arranged at power intervals Miyu Okawa, Shohei Kawakami, Daiki Miyake, Fumihiko Ito (Shimane Univ.) OFT2019-40 |
A correlation analysis method using short pulse trains arranged at power intervals as pump probe light is proposed. The ... [more] |
OFT2019-40 pp.23-27 |