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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 15 of 15  /   
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
 Results 1 - 15 of 15  /   
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