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All Technical Committee Conferences (Searched in: Recent 10 Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PN | 2025-03-03 15:25 |
Okinawa | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Distributed Raman Amplification by Incoherent forward Pumps Satoru Ichihara, Shigehiro Takasaka, Norihiro Ohishi, Yasuto Tatamida, Junji Yoshida, Daichi Ogata, Shunya Hayashi, Ryuichi Sugizaki, Toshio Kimura (Furukawa Electric)  PN2024-66 |
We confirm flat on/off gain and reduced relative intensity noise by bi-directional distributed Raman amplification with ... [more] | PN2024-66 pp.35-42 |
| OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 15:00 |
Kochi | Hexagonal Cladding 19-core EDF for Improved Output Power of Cladding Pumped Amplification Koichi Maeda, Shigehiro Takasaka, Ryuichi Sugizaki, Masanori Takahashi (FEC) OFT2024-68 |
[more] | OFT2024-68 pp.1-4 |
|
| OPE, LQE, OCS | 2024-10-17 15:05 |
Yamaguchi | Cladding Pumped 19-core EDFA only by Multicore Components Koichi Maeda, Shigehiro Takasaka, Ryuichi Sugizaki, Masanori Takahashi (FEC) OCS2024-32 OPE2024-85 LQE2024-32 |
By applying a multi-core optical connector interface and multi-core integrated optical components, we fabricated a fully... [more] | OCS2024-32 OPE2024-85 LQE2024-32 pp.43-46 |
|
| EMT, PN, MWPTHz, IEE-EMT [detail] | 2024-01-23 14:45 |
Kyoto | Kyoto Univ. Yoshida Campus | Bi-directional-Pumped Distributed Raman Amplification in C and L Bands using Incoherent Pumps with second order Pumps Satoru Ichihara, Shigehiro Takasaka, Norihiro Ohishi, Yasuto Tatamida, Junji Yoshida, Ryuichi Sugizaki, Toshio Kimura (Furukawa Electric) PN2023-65 EMT2023-105 MWPTHz2023-93 |
Raman pump unit composed of wideband semiconductor incoherent optical sources as first-order pumps and conventional pump... [more] | PN2023-65 EMT2023-105 MWPTHz2023-93 pp.92-96 |
| PN | 2023-08-30 11:15 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Quasi-Constant Signal Power Transmission with Low Signal RIN by bidirectional DRA with Incoherent-Forward Pumps. Norihiro Ohishi, Shigehiro Takasaka, Satoru Ichihara, Yasuto Tatamida, Junji Yoshida, Toshio Kimura (FURUKAWA ELECTRIC) PN2023-34 |
[more] | PN2023-34 pp.92-96 |
| OFT | 2023-05-11 14:25 |
Iwate | Aiina(Iwate) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Report on OFC2023
-- Optical Fibers -- Shigehiro Takasaka, Masanori Takahashi, Ryuichi Sugizaki (Furukawa Electric) OFT2023-1 |
[more] | OFT2023-1 pp.1-5 |
| PN | 2023-03-02 09:30 |
Okinawa | (Primary: On-site, Secondary: Online) |
Spatial division multiplexed amplification by Cladding pumped EDFA Shigehiro Takasaka (Furukawa Electric), Kohki Shibahara, Takayuki Kobayashi, (NTT), Koichi Maeda, Ryuichi Sugizaki (Furukawa Electric), Yutaka Miyamoto (NTT) PN2022-52 |
The use of multicore fiber is being considered to expand the transmission capacity of a single optical fiber. When coupl... [more] | PN2022-52 pp.52-55 |
| OCS, OFT, OPE (Joint) [detail] |
2023-02-17 10:05 |
Okinawa | kukuru-itomancity (Primary: On-site, Secondary: Online) |
L-band 19-Core Erbium Doped Fiber Amplifier with Power Consumption of 1.2 W/core Shigehiro Takasaka, Koichi Maeda, Ryuichi Sugizaki, Yoshigehiro Arashitani (Furukawa Electric) OCS2022-80 OPE2022-108 |
[more] | OCS2022-80 OPE2022-108 pp.52-55(OCS), pp.72-75(OPE) |
| CPM, ED, LQE | 2022-11-25 14:50 |
Aichi | Winc Aichi (Aichi Industry & Labor Center) (Primary: On-site, Secondary: Online) |
Development of Semiconductor Incoherent Light Source for Forward Raman Amplifier Junji Yoshida (Furukawa Electric), Naoya Hojo (FFOD), Yasuto Tatamida, Tomohiro Ohisi, Shigehiro Takasaka, Takuya Kokawa, Satoru Ichihara, Ryuichi Sugisaki, Toshio Kimura (Furukawa Electric) ED2022-48 CPM2022-73 LQE2022-81 |
A semiconductor incoherent light source (iPump) for a forward Raman amplifier with 250 mW fiber output is developed. Fo... [more] | ED2022-48 CPM2022-73 LQE2022-81 pp.107-110 |
| OPE, LQE, OCS | 2022-11-18 14:10 |
Online | Online | [Invited Talk]
Report on ECOC2022
-- Optical Fibers -- Shigehiro Takasaka (Furukawa Electric) OCS2022-53 OPE2022-88 LQE2022-51 |
We review topics related to optical fibers reported at ECOC2022. Research trends continue for transmission capacity incr... [more] | OCS2022-53 OPE2022-88 LQE2022-51 pp.9-12 |
| OFT | 2022-01-21 10:35 |
Online | Online | [Invited Talk]
[Invited Talk] Report on ECOC2021 -Optical Fibers- Kazunori Mukasa, Shigehiro Takasaka, Ryuichi Sugizaki (Furukawa Electric) OFT2021-67 |
This paper reports the topics of the optical fibers and their related technologies presented at ECOC2021, held at , Bord... [more] | OFT2021-67 pp.61-64 |
| OCS, OPE, LQE | 2021-11-12 16:30 |
Online | Online | [Special Invited Talk]
Amplification techniques for cladding pumped multicore EDFA Shigehiro Takasaka (Furukawa Electric) OCS2021-27 OPE2021-47 LQE2021-26 |
A tutorial was carried out in ECOC 2021 on amplification techniques in cladding pumped multi-core EDFA (Erbium Doped Fib... [more] | OCS2021-27 OPE2021-47 LQE2021-26 pp.28-33 |
| OFT, OCS, LSJ (Joint) [detail] |
2021-08-27 11:25 |
Online | Online | Output Power Increase of C-band Cladding Pumped 7-core EDFA by Using Mie Scattering Shigehiro Takasaka, Koichi Maeda, Ryuichi Sugizaki, Yoshihiro Arashitani (Furukawa Electric) OFT2021-19 |
(Advance abstract in Japanese is available) [more] | OFT2021-19 pp.39-42 |
| OFT, OCS, LSJ (Joint) [detail] |
2021-08-27 13:50 |
Online | Online | Verification of Crosstalk Reduction Effect by Applying Propagation Direction Interleaving Configuration to Cladding Pumped 19-core EDFA in L-band Koichi Maeda, Shigehiro Takasaka, Kazuaki Yoshioka, Ryuichi Sugizaki, Masayoshi Tsukamoto, Yoshihiro Arashitani (FEC) OCS2021-9 |
(Advance abstract in Japanese is available) [more] | OCS2021-9 pp.1-4 |
| OFT | 2021-05-14 13:20 |
Online | Online | Distributed Raman amplification using large-core fiber with different cut-off wavelength Shigehiro Takasaka, Tomoaki Gonohe, Ryuichi Sugizaki, Yoshihiro Arashitani (Furukawa Electric) OFT2021-6 |
[more] | OFT2021-6 pp.23-26 |
| OFT | 2021-05-14 15:35 |
Online | Online | Effects of acoustic wave under water for optical fiber cable Hiroto Mochizuki, Masateru Tadakuma, Shigehiro Takasaka, Kenji Yamauchi, Ryuichi Sugizaki, Yoshihiro Arashitani (Furukawa Electrc) OFT2021-11 |
We evaluate the effect of underwater acoustic waves on ocean fiber cables used in water. The possibility of underwater a... [more] | OFT2021-11 pp.44-47 |
| PN | 2021-03-01 15:35 |
Online | Online | [Invited Talk]
R&D on high-capacity multi-core fiber transmission systems Itsuro Morita, Daiki Soma, Takehiro Tsuritani (KDDI Research), Masato Yoshida, Hiroshi Yasaka (Tohoku Univ), Takemi Hasegawa, Tetsuya Hayashi (Sumitomo Electric), Shigehiro Takasaka, Koichi Maeda, Ryuichi Sugizaki (Furukawa Electric), Takanori Inoue, Hitoshi Takeshita (NEC), Taketoshi Takahata, Tetsuya Kobayashi (OPTOQUEST) PN2020-46 |
The capacity of optical submarine cable systems has been drastically increased by introducing various innovative technol... [more] | PN2020-46 pp.26-29 |
| OCS, OFT, LSJ (Joint) [detail] |
2020-08-28 14:50 |
Online | Online | Crosstalk Reduction for Cladding Pumped 19-core EDFA by Propagation Direction Interleaving Technique Koichi Maeda, Shigehiro Takasaka, Kazuaki Yoshioka, Ryuichi Sugizaki, Masayoshi Tsukamoto, Yoshihiro Arashitani (Furukawa Electric) OCS2020-6 |
We demonstrated a propagation direction interleaved cladding pumped 19-core EDFA and confirm the reduction effect of cor... [more] | OCS2020-6 pp.11-14 |
| OCS, OFT, LSJ (Joint) [detail] |
2020-08-28 16:40 |
Online | Online | Absorption Ratio Dependence of Gain Characteristics on Cladding Pumped Multicore EDFAs Shigehiro Takasaka, Koichi Maeda, Ryuichi Sugizaki, Masayoshi Tsukamoto, Yoshihiro Arashitani (Furukawa Electric) OFT2020-8 |
(Advance abstract in Japanese is available) [more] | OFT2020-8 pp.29-32 |
| PN, NS, OCS (Joint) |
2020-06-18 10:05 |
Online | Online | Loss budget for SDM node Ryuichi Sugizaki, Masanori Takahashi, Koichi Maeda, Shigehiro Takasaka, Kazuaki Yoshioka, Yashihiro Arashitani (Furukawa Electric) PN2020-5 |
[more] | PN2020-5 pp.1-5 |
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