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 Results 1 - 20 of 29  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OCS, OFT, LSJ
(Joint) [detail]
2022-08-25
13:30
Online Online Multi-Fiber Cylindrical Ferrule for Remote Rotary Optical Fiber Switching
Chisato Fukai, Yoshiteru Abe, Kazunori Katayama (NTT)
(Advance abstract in Japanese is available) [more]
OPE, OFT, OCS
(Joint) [detail]
2022-02-24
16:00
Online Online A study of optical power measurement using a infrared image sensor for a remote operated optical path switching node
Ryo Koyama, Yoshiteru Abe, Kazunori Katayama (NTT) OFT2021-73 OPE2021-53
Optical access network is an important infrastructure of 5G mobile service and incoming Beyond 5G mobile service. These ... [more] OFT2021-73 OPE2021-53
pp.17-22(OFT), pp.21-26(OPE)
OFT 2022-01-20
15:45
Online Online Study on optical coupling technique based on optical fiber side-polishing without service interruption
Takui Uematsu, Kazutaka Noto, Hiroyuki Iida, Hidenobu Hirota, Kazunori Katayama (NTT) OFT2021-61
We propose an optical coupler insertion technique based on fiber side-polishing that does not interrupt service. Experim... [more] OFT2021-61
pp.32-35
OFT 2022-01-20
16:10
Online Online Remote Operated Optical Fiber Switching Node and Optical Cross-Connect Function on Concatenated Loop Topology
Hiroshi Watanabe, Tomohiro Kawano, Chisato Fukai, Ryo Koyama, Kazuhide Nakae, (NTT), Tatsuya Fujimoto (NTT East), Yoshiteru Abe, Kazunori Katayama (NTT) OFT2021-62
Due the popularization of future 5G and Beyond 5G, the concatenated loop topology is being studied as way of realizing h... [more] OFT2021-62
pp.36-41
OFT 2021-05-13
14:20
Online Online Connection results for 8-fiber multicore fiber connectors with different structure
Yoshiteru Abe, Taiji Sakamoto (NTT), Kohei Kawasaki, Kengo Watanabe, Ryuichi Sugizaki (Furukawa Electric Co., Ltd.), Kazuhide Nakajima, Kazunori Katayama (NTT) OFT2021-3
 [more] OFT2021-3
pp.9-12
OFT 2021-05-13
14:45
Online Online Optical switch using rotation mechanism of multi-core fiber for remote operated optical fiber switching node
Chisato Fukai, Yoshiteru Abe, Kazunori Katayama (NTT) OFT2021-4
We are studying concatenated loop topology and remote operated optical fiber switching node as optical access network fo... [more] OFT2021-4
pp.13-16
OPE, OCS, OFT
(Joint) [detail]
2021-02-19
11:40
Online Online Proposal of Remote Operated Optical Fiber Switching Node for Future Optical Access Network
Tatsuya Fujimoto, Kawano Tomohiro, Kazuhide Nakae, Hiroshi Watanabe, Kazunori Katayama (NTT) OFT2020-67 OPE2020-88
We are studying concatenated loop topology as optical access network for beyond 5G with excellent reliability, tolerance... [more] OFT2020-67 OPE2020-88
pp.54-57(OFT), pp.59-62(OPE)
OFT 2019-10-11
09:35
Niigata Ekimae-Office-Kashikaigishitsu (Niigata) Investigation into the influence of high-power transmission on fiber withdrawal of optical connector
Chisato Fukai, Yoshiteru Abe, Masaaki Takaya, Ryo Koyama, Kazunori Katayama (NTT) OFT2019-32
In an optical connector manufactured by fixing silica fiber in a zirconia ferrule with an epoxy adhesive, a change in co... [more] OFT2019-32
pp.1-6
OFT 2019-05-17
10:45
Osaka I-site NANBA 20-year reliability test results for SC optical connectors on outside plant
Yoshiteru Abe, Kota Shikama, Kazunori Katayama (NTT) OFT2019-22
Optical connectors are currently used in both indoor environments such as buildings and in outdoor equipment such as aer... [more] OFT2019-22
pp.93-96
OCS, OFT, LSJ
(Joint) [detail]
2018-08-31
11:20
Hokkaido Hakodate Hokuyo Building 8Kai Hall Optical Loss Characteristics of Ultra-high-density Cable and Dependency of Measured Lateral Pressure to Fibers in Cable-core
Yusuke Yamada, Masashi Kikuchi, Junichi Kawataka, Hisashi Izumita, Kazunori Katayama, Hiroaki Tanioka (NTT) OFT2018-10
(Advance abstract in Japanese is available) [more] OFT2018-10
pp.19-23
OPE, OCS, OFT
(Joint) [detail]
2018-02-16
14:20
Okinawa Okinawa Prefectural Museum A Study of Fiber Cleaving Technique Breaking Fiber with a Tension Force for a New Single-Fiber Cleaver utilized in Fiber Splicing
Ryo Koyama, Chisato Fukai, Masaaki Takaya, Kazunori Katayama (NTT) OFT2017-78 OPE2017-186
(Advance abstract in Japanese is available) [more] OFT2017-78 OPE2017-186
pp.53-56(OFT), pp.91-94(OPE)
OPE, OCS, OFT
(Joint) [detail]
2018-02-16
14:45
Okinawa Okinawa Prefectural Museum Study on applicability to maintenance and inspection work of 3D-based external-facility management technology -- 3D-based External-Facility Management Technology Using Mobile Mapping System, 10th Report --
Masaki Waki, Takashi Goto, Kazunori Katayama (NTT) OFT2017-79 OPE2017-187
Service provided by FTTH is the transition from growth phase to maturity, in order to continue the stable service provid... [more] OFT2017-79 OPE2017-187
pp.57-60(OFT), pp.95-98(OPE)
OFT, OCS, IEE-CMN, ITE-BCT [detail] 2017-11-24
10:45
Osaka Kansa-Univ. Umeda Campus Electrically driven multifiber switching technique employing MT ferrule with non-circle guide holes
Chisato Fukai, Mitsuru Kihara, Ryo Koyama, Yoshiteru Abe, Masaaki Takaya, Kazunori Katayama (NTT) OFT2017-51
We studied multifiber switching technique which used switching connector and electrical driven equipment. The switching ... [more] OFT2017-51
pp.37-42
OCS, OFT, OPE
(Joint) [detail]
2017-02-17
15:20
Osaka Osaka Prefecture University(I-site Nanba) Novel equipment for inspecting fiber eccentricities in MT/MPO connector to enable high speed measurement
Mitsuru Kihara, Ryo Koyama, Chisato Fukai, Kazunori Katayama, Toshio Kurashima (NTT) OFT2016-55 OPE2016-176
To achieve a low-loss multi-fiber connector such as MT or MPO connectors, it is important to inspect fiber eccentricitie... [more] OFT2016-55 OPE2016-176
pp.53-57(OFT), pp.83-87(OPE)
OFT 2017-01-20
14:35
Tokyo Kikaishinko Kaikan Investigation into the influence of high power transmission on joints between different types of fibers
Chisato Fukai, Ryo Koyama, Yoshiteru Abe, Mitsuru Kihara, Kazunori Katayama (NTT) OFT2016-38
Cutoff shifted fiber (CSF) is a low loss and low nonlinear fiber compared with other kinds of fibers. Therefore, it is e... [more] OFT2016-38
pp.15-20
OFT 2016-10-14
09:30
Iwate MALIOS (Morioka City) [Invited Talk] Study for the application to the maintenance and inspection work of the 3D-based external-facility management technology -- 3D-based External-Facility Management Technology Using Mobile Mapping System, 7th Report --
Masaki Waki, Takashi Goto, Toshio Kurashima, Kazunori Katayama (NTT) OFT2016-22
Service provided by FTTH is the transition from growth phase to maturity, in order to continue the stable service provid... [more] OFT2016-22
pp.25-28
OPE, OCS, OFT
(Joint) [detail]
2015-02-19
16:25
Kagoshima   Verification of Operating Procedures without Interrupting Service while Changing Optical Access Line Routes
Masaaki Inoue, Takanori Kiyokura, Hidenobu Hirota, Tomohiro Kawano, Kazunori Katayama, Keiji Okamoto, Tetsuya Manabe (NTT) OFT2014-70 OPE2014-215
(Advance abstract in Japanese is available) [more] OFT2014-70 OPE2014-215
pp.71-76
OCS, OFT
(Joint)
2014-08-29
10:25
Hokkaido Kushiro Royal Inn Highly sensitive detection of fiber bending using 1-μm-band mode detection OTDR
Atsushi Nakamura, Keiji Okamoto, Yusuke Koshikiya, Nobutomo Hanzawa, Kazunori Katayama, Tetsuya Manabe (NTT) OFT2014-18
Fiber bending can cause troubles in the optical networks due to a fiber loss increase. The potential fault location such... [more] OFT2014-18
pp.13-16
OCS, OFT, ITE-BCT, IEE-CMN
(Joint) [detail]
2013-11-21
16:15
Niigata Nagaoka University of Technology A Study Regarding the Time-delay Calibration for the Interruption-free Optical Access Line Transfer System
Keiji Okamoto, Masaaki Inoue, Kazunori Katayama, Tetsuya Manabe (NTT) OFT2013-41
In order to realize an efficient operation for rearranging optical access lines, we have studied optical line switching ... [more] OFT2013-41
pp.25-30
OFT 2013-10-24
17:30
Nara   The Navigation System with Augmented Reality Technology using a Tablet Computer for Operation and Maintenance Work
Ikutaro Ogushi, Kazunori Katayama, Tetsuya Manabe (NTT) OFT2013-32
(Advance abstract in Japanese is available) [more] OFT2013-32
pp.47-50
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