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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 27  /  [Next]  
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, OPE
(Joint) [detail]
2020-02-28
14:35
Okinawa Okinawa Jichikaikan Optical Access Network Design for Uncertainly Distributed Demands
Shingo Ohno, Chihiro Kito, Kunihiro Toge, Shigekatsu Tetsutani, Jun-ichi Kawataka (NTT) OFT2019-71 OPE2019-114
(Advance abstract in Japanese is available) [more] OFT2019-71 OPE2019-114
pp.59-62(OFT), pp.79-82(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
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