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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OPE, OCS, OFT (Joint) [detail] |
2021-02-19 11:15 |
Online | Online | Optimization of Optical Access Network Design for Beyond 5G Shingo Ohno, Chihiro Kito, Kunihiro Toge, Shigekatsu Tetsutani, Shoichi Furujo (NTT)  OFT2020-66 OPE2020-87 |
This paper describes optical access network design for beyond 5G and its optimum design parameters. While conventional o... [more] | OFT2020-66 OPE2020-87 pp.50-53(OFT), pp.55-58(OPE) |
| OCS, OFT, LSJ (Joint) [detail] |
2018-08-30 14:30 |
Hokkaido | Hakodate Hokuyo Building 8Kai Hall | Investigation on Cross-sectional Brillouin Gain depending on the Electric Field Distribution Tomokazu Oda (NTT), Hiroshi Takahashi (NTT East), Kunihiro Toge, Tetsuya Manabe (NTT) OFT2018-6 |
Mode division multiplexing technique has been intensively studied for realization of large capacity optical communicatio... [more] | OFT2018-6 pp.1-4 |
| 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, LSJ (Joint) [detail] |
2017-08-31 13:15 |
Hokkaido | Hokkaido Univ. | Single-way Inter-modal Crosstalk Distribution Measurement in Spliced FMFs based on Stimulated Brillouin Scattering Hiroshi Takahashi, Chihiro Kito, Kunihiro Toge, Tetsuya Manabe (NTT), Fumihiko Ito (Shimane Univ.) OFT2017-24 |
A space division multiplexing (SDM) transmission system has been intensively studied for large capacity optical communic... [more] | OFT2017-24 pp.1-4 |
| OFT | 2017-05-25 14:30 |
Shimane | Shimane Univ. (Matsue campus) | Simplified and high speed BOTDA employing frequency-swept pulses Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2017-2 |
In recent years, research on optical measurement technology using Brillouin scattering capable of measuring temperature ... [more] | OFT2017-2 pp.7-10 |
| OCS, OFT, OPE (Joint) [detail] |
2017-02-16 15:55 |
Osaka | Osaka Prefecture University(I-site Nanba) | High-resolution measurement of differential mode delay of few-mode fiber using phase-comparing FMCW Shingo Ohno, Daisuke Iida, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2016-47 OPE2016-163 |
Differential mode delay (DMD) is an important parameter to characterize mode division multiplexing transmission lines, a... [more] | OFT2016-47 OPE2016-163 pp.15-18(OFT), pp.21-24(OPE) |
| OCS, OFT, OPE (Joint) [detail] |
2017-02-17 10:45 |
Osaka | Osaka Prefecture University(I-site Nanba) | Transient Dynamics of Brillouin Acoustic Wave on Frequency Swept Pulse for Fiber Loss Monitoring Hiroshi Takahashi, Kunihiro Toge, Chihiro Kito, Manabe Tetsuya (NTT) OFT2016-52 OPE2016-169 |
We have proposed pulsed pump-probe Brillouin optical time domain analysis (ERA-BOTDA) for optical fiber loss measurement... [more] | OFT2016-52 OPE2016-169 pp.39-44(OFT), pp.49-54(OPE) |
| OFT, OCS, IEE-CMN, ITE-BCT [detail] | 2016-11-11 13:10 |
Nagasaki | Nagasaki Shoko Kaigi Sho | Brillouin dynamic strain measurement employing frequency-swept pulses Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2016-32 |
Recently, a lot of Brillouin-based fast sensing schemes were reported aiming to apply to social structure health monitor... [more] | OFT2016-32 pp.41-44 |
| OFT, OCS, OPE (Joint) [detail] |
2016-02-19 11:40 |
Okinawa | Okinawa Univ. | High-frequency distributed acoustic sensing with frequency-multiplexed phase-OTDR Daisuke Iida, Kunihiro Toge, Manabe Tetsuya (NTT) OFT2015-68 OPE2015-233 |
(Advance abstract in Japanese is available) [more] | OFT2015-68 OPE2015-233 pp.73-78(OFT), pp.99-104(OPE) |
| 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) |
| OCS, OFT, IEE-CMN, ITE-BCT (Joint) [detail] |
2015-11-13 13:25 |
Ehime | Matsuyama Civic Center | End-reflection assisted Brillouin analysis using frequency-swept pump pulse Hiroshi Takahashi, Kunihiro Toge, Chihiro Kito, Tetsuya Manabe (NTT) OFT2015-43 |
(Advance abstract in Japanese is available) [more] | OFT2015-43 pp.55-60 |
| OFT, OCS (Joint) |
2015-08-28 10:50 |
Hokkaido | Field demonstration of PON monitoring by end-reflection assisted Brillouin analysis Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2015-23 |
Recently, we proposed individual loss distribution measurement method “end-reflection assisted Brillouin analysis” for P... [more] | OFT2015-23 pp.39-42 |
|
| OPE, OCS, OFT (Joint) [detail] |
2015-02-19 15:35 |
Kagoshima | End-reflection assisted Brillouin measurement using broadband probe pulse Hiroshi Takahashi, Chihiro Kito, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2014-68 OPE2014-213 |
(Advance abstract in Japanese is available) [more] | OFT2014-68 OPE2014-213 pp.63-66 |
|
| 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 |
|
| ITE-BCT, OCS, OFT, IEE-CMN (Joint) [detail] |
2014-11-13 15:40 |
Hiroshima | Applicability of End Reflection Assisted Brillouin Analysis to Broken PON Monitoring Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe (NTT), Fumihiko Ito (Shimane Univ.) OFT2014-40 |
(Advance abstract in Japanese is available) [more] | OFT2014-40 pp.15-18 |
|
| OFT | 2014-10-23 16:15 |
Hyogo | High Reliability Branched Fiber Sensing with Multi-probe Pulse End-reflection Assisted Brillouin Analysis Chihiro Kito (NTT), Fumihiko Ito (Shimane Univ.), Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe (NTT) OFT2014-29 |
Recently, we proposed end-reflection assisted Brillouin analysis to aim for monitoring branched fiber loss distribution ... [more] | OFT2014-29 pp.33-38 |
|
| OCS, OFT, ITE-BCT, IEE-CMN (Joint) [detail] |
2013-11-22 11:40 |
Niigata | Nagaoka University of Technology | Acoustic Perturbation Compensated Coherent OTDR with Spectrum Monitoring of the Rayleigh Backscattering Hiroyuki Iida, Kunihiro Toge, Fumihiko Ito (NTT) OFT2013-45 |
(Advance abstract in Japanese is available) [more] | OFT2013-45 pp.49-52 |
| OFT | 2013-10-24 16:40 |
Nara | Splice Loss Measurement Using End-reflection Assisted Brillouin Analysis Hiroshi Takahashi, Kunihiro Toge, Fumihiko Ito, Chihiro Kito (NTT) OFT2013-30 |
In deployed FTTH networks, bending insensitive fibres (BIFs) standardized by ITU-T G. 657 have been employed to optimise... [more] | OFT2013-30 pp.39-42 |
|
| OFT, OCS (Joint) |
2013-08-23 09:25 |
Hokkaido | End Reflection Assisted Brillouin Analysis for Monitoring PONs with Frequency-coded Pulse Train Chihiro Kito, Fumihiko Ito, Hiroshi Takahashi, Kunihiro Toge (NTT) OFT2013-17 |
We have proposed a PON fault location technique that uses end reflection beam and Brillouin gain analysis, which can loc... [more] | OFT2013-17 pp.21-24 |
|
| OFT | 2013-05-23 14:00 |
Okinawa | High density FDM-OTDR with apodization of the probe pulse and suppression of the nonlinear effect Hiroyuki Iida, Kunihiro Toge, Fumihiko Ito (NTT) OFT2013-1 |
We have developed a high sensitivity coherent optical time domain reflectometry employing frequency division multiplexi... [more] |
OFT2013-1 pp.1-4 |
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