Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
OPE, OFT, OCS (Joint) [detail] |
2025-02-20 14:20 |
Okinawa |
|
Study on numerical simulation method for group delay spread in randomly coupled multi-core fiber Ryota Imada, Taiji Sakamoto (NTT), Takanori Satoh, Kunimasa Saitoh (HU), Kazuhide Nakajima (NTT) OCS2024-64 OPE2024-107 |
Randomly coupled multi-core fiber (RC-MCF) has attracted attention as a space-division multiplexing optical fiber for lo... [more] |
OCS2024-64 OPE2024-107 pp.10-14(OCS), pp.15-19(OPE) |
OPE, OFT, OCS (Joint) [detail] |
2025-02-20 17:10 |
Okinawa |
|
Design of Gain Flattening Filter for 2LP-mode EDFA Using Long-Period Fiber Gratings Takumi Kimura, Takanori Sato (Hokkaido Univ), Masaki Wada, Taro Iwaya, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaido Univ) OFT2024-106 OPE2024-113 |
In optical communication systems based on wavelength-division and mode-division multiplexing technologies, reducing the ... [more] |
OFT2024-106 OPE2024-113 pp.22-27(OFT), pp.46-51(OPE) |
OCS, LQE, OPE, OFT |
2024-11-22 15:40 |
Online |
Online |
[Special Invited Talk]
389.3-Tb/s 1017-km C-Band Transmission based on a Field-Installed 12-Coupled-Core Fiber Cable and Over-12-Tb/s Spatial MIMO Channels Akira Kawai, Kohki Shibahara, Megumi Hoshi, Masanori Nakamura, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi (NTT), Soichi Endo, Takemi Hasegawa (Sumitomo Electric), Ryo Nagase (CIT), Yutaka Miyamoto (NTT) OCS2024-54 OFT2024-79 OPE2024-102 LQE2024-49 |
[more] |
OCS2024-54 OFT2024-79 OPE2024-102 LQE2024-49 pp.20-21 |
OPE, OFT, OCS (Joint) [detail] |
2024-02-21 16:55 |
Okinawa |
Nobumoto Ohama Memorial Hall (Primary: On-site, Secondary: Online) |
A study on loss characteristics of uncoupled 3-mode 4-core graded index fiber with a common depressed layer Tomoki Honda, Takanori Sato (Hokkaido Univ.), Taro Iwaya, Yuto Sagae, Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaido Univ.) OCS2023-75 OFT2023-67 OPE2023-118 |
[more] |
OCS2023-75 OFT2023-67 OPE2023-118 pp.42-47(OCS), pp.23-28(OFT), pp.58-63(OPE) |
OPE, OFT, OCS (Joint) [detail] |
2024-02-22 10:25 |
Okinawa |
Nobumoto Ohama Memorial Hall (Primary: On-site, Secondary: Online) |
A Study on Figure of Merit of Low loss Hole-Assisted Single-Mode optical Fiber Kouhei Omoto, Nobutomo Hanzawa, Takashi Matsui, Kazuhide Nakajima (NTT) OFT2023-75 OPE2023-127 |
We have reported that the Hole-Assist (HA) structure with a small diameter core and a low refractive index difference co... [more] |
OFT2023-75 OPE2023-127 pp.66-69(OFT), pp.107-110(OPE) |
OFT |
2023-10-12 10:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
The effects of core-to-core distances of MCFs and spatial resolutions of DSSs on MCF shape sensing Takafumi Ogura, Makito Kobayashi (UTokyo), Masaki Wada, Takashi Matsui, Kazuhide Nakajima (NTT), Kengo Koizumi, Hitoshi Murai (OKI), Hideaki Murayama (UTokyo) OFT2023-18 |
A multi-core fiber (MCF) with three times the core spacing of conventional fibers was developed for shape sensing of def... [more] |
OFT2023-18 pp.11-14 |
OFT |
2023-10-12 13:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Distributed strain measurements of multi-core fiber ribbon Shintaro Nakamoto, Takafumi Ogura (UTokyo), Masaki Wada, Takashi Matsui, Kazuhide Nakajima (NTT), Ryota Wada, Hideaki Murayama (UTokyo) OFT2023-24 |
We propose a ribbon-shaped optical fiber (MCF ribbon) consisting MCFs and SMFs, which is designed to fix the twisted con... [more] |
OFT2023-24 pp.35-38 |
OFT, OCS, LSJ (Joint) [detail] |
2023-08-24 16:15 |
Hokkaido |
(Primary: On-site, Secondary: Online) |
Effective Nonlinear Coefficient of Coupled Multi-core Fiber Taiji Sakamoto, Ryota Imada, Kazuhide Nakajima (NTT) OCS2023-23 |
[more] |
OCS2023-23 pp.21-26 |
OFT |
2023-05-11 15:25 |
Iwate |
Aiina(Iwate) (Primary: On-site, Secondary: Online) |
A study on loss characteristics of 3-mode dual-step index pure silica core fiber. Taro Iwaya, Yuto Sagae, Takayoshi Mori, Taiji Sakamoto, Takashi Matsui (NTT), Takanori Sato, Kunimasa Saitoh (Hokudai), Kazuhide Nakajima (NTT) OFT2023-3 |
Toward lowering loss and differential mode delay (DMD) of 3-mode fiber, feasibility of pure silica core with dual-step i... [more] |
OFT2023-3 pp.10-13 |
OFT |
2023-05-11 16:15 |
Iwate |
Aiina(Iwate) (Primary: On-site, Secondary: Online) |
Design of uncoupled 3-mode 4-core graded-index fibers with a common depressed layer Tomoki Honda, Takanori Sato, Takeshi Fujisawa (Hokaido Univ.), Taro Iwaya, Yuto Sagae, Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokaido Univ.) OFT2023-5 |
We design a standard diameter (125 μm) uncoupled 3-mode 4-core fiber (3M-4CF). In order to suppress the inter-core cross... [more] |
OFT2023-5 pp.20-23 |
OCS, OFT, OPE (Joint) [detail] |
2023-02-17 09:15 |
Okinawa |
kukuru-itomancity (Primary: On-site, Secondary: Online) |
A study on bending loss properties of coupled multi-core fiber Ryota Imada, Taiji Sakamoto, Takayoshi Mori, Yusuke Yamada, Kazuhide Nakajima (NTT) OFT2022-58 OPE2022-106 |
We investigate the dependence of bending loss on bending angle in coupled multi-core fiber. We reveal the bending loss i... [more] |
OFT2022-58 OPE2022-106 pp.37-40(OFT), pp.64-67(OPE) |
OCS, OFT, OPE (Joint) [detail] |
2023-02-17 14:10 |
Okinawa |
kukuru-itomancity (Primary: On-site, Secondary: Online) |
A study on a PLC-based six-mode multi/demultiplexer using Y-branch mode converter and optical unitary converter Yasuto Yoshida, Takanori Sato, Takeshi Fujisawa (Hokkaido Univ.), Takayoshi Mori, Taiji Sakamoto, Yoko Yamashita, Ryota Imada, Kazuhide Nakajima (NTT), Kunimasa Saitoh (Hokkaido Univ.) OCS2022-86 OFT2022-62 OPE2022-115 |
A selective/non-selective six-mode (de)multiplexer using planar lightwave circuits (PLC) is designed to realize mode-div... [more] |
OCS2022-86 OFT2022-62 OPE2022-115 pp.80-85(OCS), pp.53-58(OFT), pp.105-110(OPE) |
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) CS2022-44 |
The worldwide pandemic of coronavirus infection has led to the proposal and social implementation of various preventive ... [more] |
CS2022-44 pp.9-10 |
OCS, OFT, LSJ (Joint) [detail] |
2022-08-26 10:00 |
Online |
Online |
A Study on Relationship Between air hole etching and attenuation property in 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 |