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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CS, CQ (Joint) |
2021-05-13 15:20 |
Online | On-line | [Invited Talk]
Expectation on the B5G/6G from space optical communication systems Toshiharu Ito (NEC)  CS2021-5 CQ2021-11 |
[more] | CS2021-5 CQ2021-11 p.12(CS), p.46(CQ) |
| SANE, SAT (Joint) |
2019-02-14 14:25 |
Kagoshima | Tanegashima Island | Adaptive distributed frame repetition with optical transponder for long-distance free-space communication systems Toshiharu Ito, Yohei Hasegawa, Yoshimasa Ono, Manabu Arikawa (NEC) SAT2018-65 |
In order to stably achieve high throughputs in the satellite-to-ground free space optical communication systems, suppres... [more] | SAT2018-65 pp.47-52 |
| SANE, SAT (Joint) |
2019-02-14 14:50 |
Kagoshima | Tanegashima Island | A Data Transfer Throughput Model with Ultra-High-Speed TCP and Adaptive Frame Repetition for Free-Space Optical Satellite Communications Yohei Hasegawa, Toshiharu Ito, Yoshimasa Ono, Manabu Arikawa (NEC Corp.) SAT2018-66 |
We discuss a performance model for TCP/IP data transfer throughput over free-space optical satellite communications (FSO... [more] | SAT2018-66 pp.53-58 |
| PN | 2018-09-03 13:45 |
Hokkaido | Hotel DAIHEIGEN (Tokachi) | [Invited Talk]
High-Speed Free-Space Optical Communication Enabled by Mode Diversity Reception with a Few-Mode-Fiber under Atmospheric Turbulence Manabu Arikawa, Toshiharu Ito (NEC) PN2018-19 |
We report investigations on mode diversity reception with a few-mode-fiber coupling for high-speed satellite-to-ground f... [more] | PN2018-19 pp.25-32 |
| SANE | 2015-06-18 14:00 |
Ibaraki | Tsukuba Space Center, JAXA | Studies for introduction of digital coherent optical transmission technologies in the inter-satellite or satellite-airplane commnication systems Toshiharu Ito, Manabu Arikawa, Arihide Noda, Norifumi Kamiya, Yoichi Hashimoto (NEC), Tomohiro Araki (JAXA) SANE2015-16 |
We have investigated the introduction of digital coherent optical transmission technologies for increasing the bandwidth... [more] | SANE2015-16 pp.1-6 |
| CS, OCS (Joint) |
2014-01-22 13:40 |
Tokyo | Hajijo-jima Ohgagou Kouminkan | A Linear-MMSE Mth Power-Law Phase Estimator for Optical M-PSK Transmission Go Ito, Yuki Yoshida (Osaka Univ.), Toshiharu Ito, Kiyoshi Fukuchi (NEC), Ken-ichi Kitayama (Osaka Univ.) CS2013-88 |
An Mth power-law phase estimator using the Su-Wong-Ho filter; the optimal linear filter for symmetric Levy process phase... [more] | CS2013-88 pp.23-27 |
| 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 |
|
| OCS, CS (Joint) |
2013-01-24 13:55 |
Ehime | Ehime Univ. | Experimental Evaluation of the Relative Contribution to Q Factor Penalty of a Received Signal from Accumulation of ASE and from Inter-Core Crosstalk in MCF Transmission Systems Emmanuel Le Taillandier de Gabory, Manabu Arikawa, Toshiharu Ito, Kiyoshi Fukuchi (NEC) OCS2012-86 |
We evaluate the relative contribution of accumulation of ASE and of crosstalk from space-division multiplexed interferer... [more] | OCS2012-86 pp.7-12 |
| NS, OCS, PN (Joint) |
2012-06-21 13:55 |
Yamagata | Yamagata Univ. | Long-haul Transmission of 127 Gb/s PM-QPSK Signal with Real-Time DSP-based full CD Compensation at the Receiver Manabu Arikawa, Takeshi Okamoto, Mitsunori Muraki, Daisaku Ogasahara, Emmanuel Le Taillandier de Gabory, Toshiharu Ito, Kiyoshi Fukuchi (NEC) OCS2012-10 |
(Advance abstract in Japanese is available) [more] | OCS2012-10 pp.7-12 |
| OCS, LQE, OPE | 2008-10-23 17:15 |
Fukuoka | Kyushu Univ. | [Invited Talk]
Report on ECOC2008
-- High-speed and large-capacity transmission technologies -- Toshiharu Ito (NEC) OCS2008-63 OPE2008-106 LQE2008-75 |
[more] | OCS2008-63 OPE2008-106 LQE2008-75 p.85 |
| OCS | 2008-05-16 13:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Study of Optical Performance Monitoring for using Ultra-High Speed Signal by In-Service All Order PMD Monitoring Method Using Stokes Vector Hitoshi Takeshita, Kiyoshi Fukuchi, Toshiharu Ito, Satomi Shioiri (NEC) OCS2008-3 |
Toward a realization of reliable networks, it is indispensable to manage signal quality transmitted in the paths. PMD is... [more] | OCS2008-3 pp.11-16 |
| LQE, OPE, OCS | 2007-11-02 15:45 |
Fukuoka | Ultra-long distance transmission experiment of 43Gb/s RZ-DPSK signal with electrical equalizer Toshiharu Ito, Kiyoshi Fukuchi (NEC) OCS2007-70 OPE2007-125 LQE2007-111 |
Evaluation results of long-distance transmission performances of 43Gb/s RZ-DPSK with electrical equalizer are reported. ... [more] | OCS2007-70 OPE2007-125 LQE2007-111 pp.149-154 |
|
| OPE, LQE, OCS | 2006-10-12 13:30 |
Fukuoka | Kyusyu Univ. Chikushi Campus | Experimental Evaluation of Modulation Format and Multiplexing Scheme for 12.5-GHz-spaced Nx10.7Gb/s WDM Long-distance Transmission Kiyoshi Fukuchi, Toshiharu Ito, Satomi Shioiri (NEC), Toshiyuki Miyamoto, Masayuki Shigematsu (SEI) OCS2006-39 OPE2006-92 LQE2006-81 |
Toward all optical network realization, a lot of researches about 1,000 channel WDM transmission technologies have been ... [more] | OCS2006-39 OPE2006-92 LQE2006-81 pp.5-10 |
| OCS | 2006-06-16 09:50 |
Shizuoka | Toray Human Resources Development Center | [Invited Talk]
Development of Ultar-wideband Electrical Equalizer Module for 40Gb/s signal and demonstration of its operation in the long-haul transmission experiment Toshiharu Ito, Risato Ohｈira, Shigeki Wada, Jin Yamazaki, Yasushi Amamiya, Hitoshi Takeshita, Arihide Noda, Kiyoshi Fukuchi (NEC) OCS2006-25 |
[more] | OCS2006-25 pp.13-18 |
| LQE, OCS, OPE | 2004-11-05 11:40 |
Fukuoka | Kyushu Institute of Technology | High performance optical transmission line using remotely-pumped optical amplification Toshiharu Ito (NEC) |
Span length extension of optical fiber transmission system using remotely pumped optical amplification was investigated.... [more] | OCS2004-99 OPE2004-164 LQE2004-108 pp.29-34 |
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