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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 84  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
CS 2022-10-27
11:00
Hiroshima Hiroshima City University Satellite campus
(Primary: On-site, Secondary: Online)
[Invited Lecture] Virus inactivation technology by UV fiver transmission -- Fivery® --
Katsuhisa Taguchi, Ayako Iwaki, Takahito Kirihara, Satoshi Narikawa, Yuto Sagae, Chisato Fukai, Takashi Matsui, Kazuhide Nakajima (NTT)
 [more]
OCS, OFT, LSJ
(Joint) [detail]
2022-08-26
10:00
Online Online A consideration on air hole etching on attenuation of a hole-assisted optical fiber
Kouhei Omoto (NTT), Kyozo Tsujikawa (NTT-AT), Takashi Matsui, Kazuhide Nakajima (NTT) OFT2022-11
It has been reported that etching treatment of the fracture layer created during drilling of the preform is effective in... [more] OFT2022-11
pp.28-31
OCS, OFT, LSJ
(Joint) [detail]
2022-08-26
10:25
Online Online A Method for Evaluating Micro-Bending Loss Sensitivity for Clarifying Applicability to High-Density Optical Fiber Cable.
Masashi Kikuchi, Takayoshi Mori, Yuto Sagae, Yusuke Yamada, Takashi Matsui, Kazuhide Nakajima (NTT) OFT2022-12
(Advance abstract in Japanese is available) [more] OFT2022-12
pp.32-36
OPE, OFT, OCS
(Joint) [detail]
2022-02-25
13:05
Online Online Group delay spread reduction using coupled multicore fibers with twist and bend
Kazushi Homma, Takanori Sato, Takeshi Fujisawa (Hokkaido Uni.), Yuto Sagae, Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaido Uni.) OCS2021-49 OFT2021-79 OPE2021-64
We investigate mode coupling characteristics in coupled multicore fibers with twist and bend for reducing the group dela... [more] OCS2021-49 OFT2021-79 OPE2021-64
pp.40-45(OCS), pp.49-54(OFT), pp.78-83(OPE)
OPE, OFT, OCS
(Joint) [detail]
2022-02-25
13:55
Online Online Control of Mode-dependent Gain in Coupled Multi-core EDF with Bend
Ryota Imada, Taiji Sakamoto, Shinichi Aozasa, Kazuhide Nakajima (NTT) OCS2021-51 OPE2021-66
We discuss the reduction in mode-dependent gain (MDG) in coupled-multi-core erbium- doped fiber (C-MC-EDF) with smaller ... [more] OCS2021-51 OPE2021-66
pp.51-55(OCS), pp.89-93(OPE)
OFT 2022-01-20
14:55
Online Online Study on optical tap waveguide with tunable wavelength and branching property
Yoko Yamashita, Takayoshi Mori, Takashi Matsui, Kazuhide Nakajima (NTT) OFT2021-59
We propose optical tap waveguide with tunable wavelength and branching property by inscribing long period fiber grating ... [more] OFT2021-59
pp.21-26
OFT, OCS, LSJ
(Joint) [detail]
2021-08-27
13:00
Online Online [Invited Talk] Recent progress on standard cladding diameter MCF and its perspective
Kazuhide Nakajima, Takashi Matsui, Yusuke Yamada, Yuto Sagae, Taiji Sakamoto, Takayoshi Mori (NTT) OFT2021-20
Space division multiplexing (SDM) is expected to be a candidate technology for overcoming a capacity limitation in an ex... [more] OFT2021-20
pp.43-48
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
OPE, LQE 2020-11-20
15:30
Online Online Suppression of bending loss in coupled few-mode multicore fibers with outer trench layer
Kenta Nishimura, Takeshi Fujisawa, Takanori Sato (Hokkaido Univ.), Taiji Sakamoto, Takashi Matsui, Yuto Sagae, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaido Univ.) OPE2020-62 LQE2020-42
We propose a coupled few-mode multicore fiber with outer trench layer for suppressing both the group delay spread (GDS) ... [more] OPE2020-62 LQE2020-42
pp.86-91
OFT 2020-10-08
11:40
Online Online [Poster Presentation] Basic study of shape sensing for large-scale line structures with multi-core fibers by Brillouin OTDR
Makito Kobayashi, Yoshiki Maeda, Kimihiro Toh (the Univ. of Tokyo), Nobutomo Hanzawa (NTT), Kengo Koizumi, Hitoshi Murai (OKI), Ryota Wada (the Univ. of Tokyo), Takashi Matsui, Kazuhide Nakajima (NTT), Hideaki Murayama (the Univ. of Tokyo) OFT2020-19
It is difficult to observe the behavior of large-scale line structures used in offshore systems directly, such as risers... [more] OFT2020-19
pp.41-45
OCS, LQE, OPE 2019-10-18
15:05
Kagoshima   Fabrication and characterization of broadband TE0-TE1 mode divider
Takeshi Fujisawa (Hokkaido Univ.), Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaido Univ.) OCS2019-48 OPE2019-86 LQE2019-64
(Advance abstract in Japanese is available) [more] OCS2019-48 OPE2019-86 LQE2019-64
pp.109-112
OFT, OCS, LSJ
(Joint) [detail]
2019-08-29
15:20
Hokkaido   A Study of Multi-Functional Multi-Core Fiber Including a Low Latency Core and Its Application
Yuto Sagae, Takashi Matsui, Taiji Sakamoto, Kazuhide Nakajima (NTT) OFT2019-26
Not only enlarging transmission capacity but decreasing latency in optical transmission has been drowning considerable a... [more] OFT2019-26
pp.13-18
OFT, OCS, OPE
(Joint) [detail]
2019-02-15
09:30
Fukuoka   The evaluation in crosstalk distribution of multi-core-fiber with air-hole
Saki Nozoe (NTT), Ryohei Fukumoto (Fujikura), Kyozo Tsujikawa, Nobutomo Hanzawa (NTT), Katsuhiro Takenaga (Fujikura), Masaharu Ohashi (Osaka Pref. Univ.), Kazuhiko Aikawa (Fujikura), Kazuhide Nakajima (NTT) OFT2018-76 OPE2018-202
(Advance abstract in Japanese is available) [more] OFT2018-76 OPE2018-202
pp.31-34(OFT), pp.51-54(OPE)
OFT 2019-01-17
14:10
Kagoshima Tanegashima space center, Nishinoomote Civic Hall A study of Group Delay Measurement Method by Using Brillouin Scattering
Yuto Sagae, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima (NTT) OFT2018-63
Low latency transmissions are enthusiastically needed in today’s optical network. Especially in long distance transmissi... [more] OFT2018-63
pp.9-13
OFT 2019-01-18
09:30
Kagoshima Tanegashima space center, Nishinoomote Civic Hall Study of Power efficient multi-core EDFA with alternating arranged C-L- band amplification cores
Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Takashi Yamamoto, Kazuhide Nakajima (NTT) OFT2018-69
In this paper, we proposed the novel C and L band three-mode erbium doped fiber amplifier that realizes high excitation ... [more] OFT2018-69
pp.39-44
OPE, LQE, OCS 2018-10-19
09:30
Saga   A Design of Low MDL Scrambling-type PLC 6 Mode Multi/ Demultiplexer
Motoki Shirata, Misa Kudo, Takeshi Fujisawa (Hokkaidou Univ.), Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaidou Univ.) OCS2018-40 OPE2018-76 LQE2018-65
The design of four-, six-, and eight-mode scrambling-type mode multi/demultiplexers (mode scramblers) together with the ... [more] OCS2018-40 OPE2018-76 LQE2018-65
pp.65-70
OFT 2018-10-11
14:00
Miyagi Touhoku Univ. [Poster Presentation] Effects of power fluctuations on void intervals in fiber fuse
Shota Ishikawa, Kenji Kurokawa (KIT), Saki Nozoe, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima (NTT) OFT2018-13
 [more] OFT2018-13
pp.1-6
OFT 2018-10-11
14:00
Miyagi Touhoku Univ. [Poster Presentation] Propagation thresholds of fiber fuse in pure silica core fibers
Kosuke Hamatani, Kenji Kurokawa (KIT), Saki Nozoe, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima (NTT) OFT2018-14
 [more] OFT2018-14
pp.7-10
OFT 2018-05-18
10:00
Tokyo Kikai-Shinko-Kaikan Bldg A Study of Solid Type Low Latency Optical Fiber
Yuto Sagae, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima (NTT) OFT2018-2
Low latency transmission is required especially in the machine-to-machine (M2M) transmission of today’s optical communic... [more] OFT2018-2
pp.5-10
OPE, OCS, LQE 2018-05-11
16:15
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Special Invited Talk] DMD-Unmanaged Long-Haul SDM Transmission Over 2500-km 12-core x 3-mode MC-FMF and 6300-km 3-mode FMF Employing Intermodal Interference Cancelling Technique
Kohki Shibahara, Takayuki Mizuno, Doohwan Lee, Yutaka Miyamoto, Hirotaka Ono, Kazuhide Nakajima (NTT), Shota Saitoh, Katsuhiro Takenaga (Fujikura), Kunimasa Saitoh (Hokkaido Univ.) OCS2018-7 OPE2018-7 LQE2018-7
This talk provides an overview of advanced space division multiplexing (SDM) technologies that we have developed over th... [more] OCS2018-7 OPE2018-7 LQE2018-7
pp.25-27
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