Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
OCS, CS (Joint) |
2022-01-13 16:20 |
Yamaguchi |
Conference room 204A・B at KDDI Ishin-hall (Primary: On-site, Secondary: Online) |
85.2-Tbit/s Coupled 4-Core Fiber Transmission over 3,120 km Using PS-16QAM Signals Shohei Beppu, Daiki Soma, Hidenori Takahashi, Noboru Yoshikane, Itsuro Morita, Takehiro Tsuritani (KDDI Research, Inc.) OCS2021-35 |
In the optical submarine cable system, which is a global communication infrastructure, continuous and dramatic increase ... [more] |
OCS2021-35 pp.11-15 |
OFT, OCS, LSJ (Joint) [detail] |
2021-08-27 14:15 |
Online |
Online |
50.47-Tb/s Coupled 4-Core Fiber Transmission over 9,150 km Daiki Soma, Shohei Beppu, Yuta Wakayama, Seiya Sumita, Hidenori Takahashi, Noboru Yoshikane, Itsuro Morita, Takehiro Tsuritani, Masatoshi Suzuki (KDDI Research) OCS2021-10 |
Since optical submarine cable systems are a part of the global communications infrastructure, their total capacity must ... [more] |
OCS2021-10 pp.5-10 |
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 |
PN |
2019-11-14 15:45 |
Kanagawa |
|
[Invited Lecture]
Design and control for massively sliced optical networks
-- Massively Parallel and Sliced Optical Network (204) -- Takehiro Tsuritani, Seiya Sumita, Noboru Yoshikane, Itsuro Morita (KDDI Research) |
In massively parallel and sliced optical networks (MAPLE) using spatial division multiplexing (SDM) technologies, each s... [more] |
|
OCS |
2016-07-28 10:40 |
Tokyo |
tokodai-kuramae-kaikan |
Experimental study on Polybinary shaping for Super-Nyquist WDM QAM signals Koji Igarashi (Osaka Univ.), Takehiro Tsuritani, Itsuro Morita (KDDI Labs) OCS2016-22 |
(Advance abstract in Japanese is available) [more] |
OCS2016-22 pp.11-16 |
OCS |
2016-07-28 11:05 |
Tokyo |
tokodai-kuramae-kaikan |
Turbo Equalization for Super-Nyquist WDM Systems Based on Duobinary Shaping Shuai Yuan, Koji Igarashi (Osaka Univ.), Takehiro Tsuritani, Itsuro Morita (KDDI Lab.) OCS2016-23 |
In Super-Nyquist wavelength division multiplexed (WDM) optical fiber transmission systems with channel spacing of smalle... [more] |
OCS2016-23 pp.17-22 |
OCS, NS, PN (Joint) |
2016-06-23 16:05 |
Hokkaido |
Hokkaido University |
[Invited Talk]
SDN Orchestration of EU-Japan Optical Network Testbeds
-- the STRAUSS Project -- Yuki Yoshida (NICT), Ken-ichi Kitayama (GPI), Noboru Yoshikane, Xiaoyuan Cao, Takahiro Tsuritani, Itsuro Morita (KDDI R&D Labs.), Yutaka Kai, Masato Nishihara, Ryo Okabe, Toshiki Tanaka, Tomoo Takahara, Jens Rasmussen (Fujitsu), Masaki Shiraiwa, Yoshinari Awaji, Naoya Wada (NICT) NS2016-37 OCS2016-13 PN2016-7 |
The framework and technological achievements of the EU-JP project, STRAUSS, are introduced. The STRAUSS project aims to ... [more] |
NS2016-37 OCS2016-13 PN2016-7 p.53(NS), p.23(OCS), p.13(PN) |
OFT, OCS, OPE (Joint) [detail] |
2016-02-19 13:30 |
Okinawa |
Okinawa Univ. |
2.05-Pbit/s SDM Transmission over 9.8-km 6-mode 19-core Fiber Daiki Soma (KDDI R&D Labs.), Koji Igarashi (Osaka Univ.), Yuta Wakayama, Koki Takeshima, Yu Kawaguchi, Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita, Masatoshi Suzuki (KDDI R&D Labs.) OCS2015-112 OPE2015-235 |
Space-division multiplexing (SDM) transmission technique using a multi-core fiber (MCF) and few-mode fiber (FMF) is attr... [more] |
OCS2015-112 OPE2015-235 pp.67-70(OCS), pp.111-114(OPE) |
OPE, OCS, OFT (Joint) [detail] |
2015-02-20 14:50 |
Kagoshima |
|
Measurement of modal contents in optical fibers based on fringe analysis Yuta Wakayama, Daiki Soma, Takehiro Tsuritani, Itsuro Morita (KDDI R&D Labs.) OCS2014-123 OPE2014-232 |
For mode division multiplexing (MDM) transmission system, modal crosstalk (MXT) would be considerably induced by slight ... [more] |
OCS2014-123 OPE2014-232 pp.115-119(OCS), pp.163-167(OPE) |
PN |
2014-09-04 15:00 |
Hokkaido |
|
[Invited Talk]
Recent Progress of Beyond 100Gb/s and Space division Multiplexing Transmission Technologies Itsuro Morita (KDDI Lab.) PN2014-14 |
This paper reviews the recent progress of beyond 100 Gb/s and space division multiplexing transmission technologies with... [more] |
PN2014-14 pp.19-24 |
LQE, OCS, OPE |
2013-10-25 13:30 |
Fukuoka |
|
Full-C-Band 110.9-Tbit/s Multi-Core Fiber Transmission Experiments over 6,370-km Koji Igarashi (Osaka Univ.), Koki Takeshima, Takehiro Tsuritani (KDDI R&D Lab.), Hidenori Takahashi (KDDI), Seiya Sumita, Itsuro Morita, Masatoshi Suzuki (KDDI R&D Lab.), Yukihiro Tsuchida, Masateru Tadakuma, Koichi Maeda, Tsunetoshi Saito, Kengo Watanabe, Katsunori Imamura, Ryuichi Sugizaki (Furukawa Electric) OCS2013-82 OPE2013-128 LQE2013-98 |
[more] |
OCS2013-82 OPE2013-128 LQE2013-98 pp.165-169 |
OFT, OPE, OCS (Joint) [detail] |
2013-02-28 16:15 |
Tokyo |
|
[Invited Talk]
First Demonstration of MC-EDFA-Repeatered SDM Transmission of 40 x 128-Gbit/s PDM-QPSK Signals per Core over 6,160-km 7-core MCF Hidenori Takahashi, Takehiro Tsuritani (KDDI Labs), Emmanuel Le Taillandier de Gabory, Toshiharu Ito (NEC), Wei-Ren Peng, Koji Igarashi, Itsuro Morita (KDDI Labs), Yukihiro Tsuchida, Yu Mimura, Koichi Maeda, Tsunetoshi Saito, Kengo Watanabe, Katsunori Imamura, Ryuichi Sugizaki (Furukawa Electric), Masatoshi Suzuki (KDDI Labs) OCS2012-103 OFT2012-75 OPE2012-193 |
In order to satisfy the demand for a further increase of data traffic in optical networks, the transmission technologies... [more] |
OCS2012-103 OFT2012-75 OPE2012-193 pp.33-38 |
OPE, LQE, OCS |
2012-10-26 14:20 |
Miyazaki |
|
Performance evaluation of multi-format and multi-rate transmitter Hyeon Yeong Choi, Takehiro Tsuritani, Itsuro Morita (KDDI Labs) OCS2012-69 OPE2012-120 LQE2012-86 |
We propose and demonstrate a new flexible optical transmitter. This transmitter is capable of generating BPSK, QPSK, 8Q... [more] |
OCS2012-69 OPE2012-120 LQE2012-86 pp.147-150 |
CS |
2012-07-12 14:55 |
Kagoshima |
China-cho-Kominkan (Okinoerabu Island) |
[Invited Talk]
Fast Polarization Tracking Methods in Polarization-Division-Multiplexed Transmission Systems with Multiple-Input Multiple-Output Processing Koki Takeshima, Hidenori Takahashi, Takehiro Tsuritani, Itsuro Morita (KDDI Labs.), Hideaki Tanaka (Toyota ITC) CS2012-34 |
Polarization-division-multiplexing (PDM) is an effective way to double a spectral efficiency in optical transmission sys... [more] |
CS2012-34 pp.63-68 |
NS, OCS, PN (Joint) |
2012-06-21 17:15 |
Yamagata |
Yamagata Univ. |
[Invited Talk]
OpenFlow-based unified control plane for multi-layer multi-granularity optical networks Lei Liu, Takehiro Tsuritani, Itsuro Morita (KDDI R&D Labs) NS2012-35 OCS2012-16 PN2012-7 |
[more] |
NS2012-35 OCS2012-16 PN2012-7 pp.31-36(NS), pp.37-42(OCS), pp.31-36(PN) |
CS, OCS (Joint) |
2012-01-27 10:15 |
Mie |
ISESHI-KANKOUBUNKAKAIKAN |
Faster Polarization Tracking with Feedback Method in Polarization-Division-Multiplexed Transmission Systems with Multiple-Input Multiple-Output Processing Koki Takeshima, Hidenori Takahashi, Itsuro Morita (KDDI Labs.), Hideaki Tanaka (Toyota ITC) CS2011-92 |
Polarization-division-multiplexing (PDM) has received widespread attention as an effective way to double spectral effici... [more] |
CS2011-92 pp.61-66 |
OCS, LQE, OPE |
2011-10-28 11:05 |
Kochi |
Kochi University of Technology |
Differential 6-ary PSK Signal Using Partial Demodulation Scheme for 100-Gb/s High-speed Transmission System Hyeon Yeong Choi, Itsuro Morita (KDDI Labs.) OCS2011-84 OPE2011-122 LQE2011-85 |
[more] |
OCS2011-84 OPE2011-122 LQE2011-85 pp.153-156 |
OCS |
2011-07-12 15:25 |
Osaka |
Osaka Univ. Nakanoshima Center |
High Capacity Direct Detection Optical OFDM by Optical Multi-band Receiving Wei-Ren Peng, Hidenori Takahashi, Itsuro Morita, Hideaki Tanaka (KDDI R&D Labs) OCS2011-42 |
In this paper we introduce a multi-band transmission and receiving method for direct-detection optical OFDM (DDO-OFDM). ... [more] |
OCS2011-42 pp.89-92 |
OCS |
2011-07-12 16:15 |
Osaka |
Osaka Univ. Nakanoshima Center |
[Invited Talk]
Optical OFDM transmission technologies for beyond 100 Gbit/s Hidenori Takahashi, Wei-Ren Peng, Itsuro Morita, Hideaki Tanaka (KDDI Labs) OCS2011-44 |
In order to satisfy the demand for a further increase of data traffic in optical networks, the use of spectrally efficie... [more] |
OCS2011-44 pp.99-104 |
PN, OCS, NS (Joint) |
2011-06-24 12:30 |
Wakayama |
Wakayama University |
A Study on Application of Traffic off-load Technique in Transport Networks Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita (KDDI Labs.) PN2011-7 |
We study effectiveness of the traffic off-load technique utilizing the sub-lambda switching in a transport network. We c... [more] |
PN2011-7 pp.31-35 |