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All Technical Committee Conferences  (Searched in: Recent 10 Years)

Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 31  /  [Next]  
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
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