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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OFT | 2022-10-13 10:50 |
Kanagawa | Kanagawa-Kenmin Center (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 |
| OFT | 2022-05-13 14:00 |
Aomori | Aomori-Aspm Bldg (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 |
| OPE, OCS, OFT (Joint) [detail] |
2021-02-19 13:55 |
Online | Online | Application of distributed vibration sensing based on frequency-division-multiplex phase OTDR to monitoring an installed aerial optical fiber cable state Yoshifumi Wakisaka, Daisuke Iida, Tatsuya Okamoto, Yusuke Koshikiya, Nazuki Honda (NTT) OFT2020-69 OPE2020-90 |
Researches on distributed vibration sensing (DVS) to closely visualize optical fiber cable states have been developed fo... [more] | OFT2020-69 OPE2020-90 pp.62-65(OFT), pp.67-70(OPE) |
| 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 | 2019-01-17 13:20 |
Kagoshima | Tanegashima space center, Nishinoomote Civic Hall | [Invited Talk]
Report on OFS-26 Tatsuya Okamoto (NTT) OFT2018-61 |
The 26th International Conference on Optical Fiber Sensors (OFS-26) was held from September 24 to 28 in Lausanne, Switze... [more] | OFT2018-61 pp.1-4 |
| 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 | 2015-01-22 15:50 |
Miyazaki | Laser phase noise reduction by control with compensation for frequency discrimination characteristic change of Mach-Zehnder interferometer Tatsuya Okamoto, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2014-48 |
(Advance abstract in Japanese is available) [more] | OFT2014-48 pp.19-22 |
|
| OFT | 2013-01-25 10:15 |
Tokushima | Characterization of phase noise of low noise laser using parallel linear optical sampling Tatsuya Okamoto, Masaaki Inoue, Fumihiko Ito (NTT) OFT2012-65 |
[more] | OFT2012-65 pp.63-66 |
|
| NLP | 2012-03-28 16:05 |
Nagasaki | Fukue Cultural Hall | A research toward the practical use of the computer game with Brain-Computer Interface Tatsuya Okamoto, Kiyohisa Natsume (KIT) NLP2011-164 |
[more] | NLP2011-164 pp.131-135 |
| OPE, OFT | 2012-03-02 11:20 |
Tokyo | Simultaneous DPSK dense WDM monitoring using linear optical sampling Tatsuya Okamoto, Fumihiko Ito, Yohei Sakamaki, Toshikazu Hashimoto (NTT) OFT2011-77 OPE2011-203 |
Each channel of WDM signal can be measured using linear optical sampling which measure a total electrical field of WDM s... [more] | OFT2011-77 OPE2011-203 pp.23-26 |
|
| OFT | 2011-01-27 17:15 |
Nagasaki | Rapid Mueller Matrix and PMD Characterization Based on Time-resolved Analysis of Pol-mux Signals Keiji Okamoto, Xinyu Fan, Tatsuya Okamoto, Fumihiko Ito, Yohei Sakamaki, Toshikazu Hashimoto (NTT) OFT2010-56 |
[more] | OFT2010-56 pp.47-50 |
|
| ITE-BCT, OCS, OFT, IEE-CMN (Joint) [detail] |
2010-11-19 09:25 |
Osaka | SEI Ikoma Seminar House | The impact of nonlinear optical effect in PMD measurement by linear optical sampling Tatsuya Okamoto, Keiji Okamoto, Xinyu Fan, Fumihiko Ito (NTT) OCS2010-94 |
In optical communication systems which has over 40Gb/s transmission speeds, polarization mode dispersion (PMD) becomes a... [more] | OCS2010-94 pp.29-34 |
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