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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 22  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OCS, PN, NS
(Joint)
2022-06-10
14:50
Online Online [Invited Talk] Demonstration of submarine cable system using multicore fiber and multicore amplifier
hitoshi Takeshita (NEC) PN2022-5
 [more] PN2022-5
pp.1-6
OPE, LQE, OCS 2022-05-13
13:05
Online Online [Invited Talk] Report on OFC2022 -- Core Transmission --
Masaki Sato, Hitoshi Takeshita (NEC) OCS2022-1 OPE2022-1 LQE2022-1
 [more] OCS2022-1 OPE2022-1 LQE2022-1
pp.1-5
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
LQE, OCS, OPE 2019-05-13
13:35
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Report on OFC2019 - Core Transmission -
Hitoshi Takeshita, Emmanuel Le Taillandier de Gabory (NEC) OCS2019-1 OPE2019-1 LQE2019-1
(Advance abstract in Japanese is available) [more] OCS2019-1 OPE2019-1 LQE2019-1
pp.1-5
OPE, OCS, LQE 2018-05-11
13:25
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Invited Talk] Report on OFC2018 -- Core Transmission --
Hitoshi Takeshita (NEC) OCS2018-1 OPE2018-1 LQE2018-1
(Advance abstract in Japanese is available) [more] OCS2018-1 OPE2018-1 LQE2018-1
pp.1-4
PN 2018-03-05
17:05
Kagoshima Minami Tanemachi Shoko Kaikan [Invited Talk] Improvement of the Utilization Efficiency of Optical Submarine Cables in Optical Networks Interconnecting Data Centers
Shinsuke Fujisawa, Hitoshi Takeshita, Shigeyuki Yanagimachi, Emmanuel Le Taillandier de Gabory (NEC) PN2017-100
Traffic demands between data centers located across the globe are continuously growing with the widespread use of variou... [more] PN2017-100
pp.61-66
PN 2017-11-16
11:05
Tokyo Kogakuin Univ. [Invited Talk] Research and Development on Elastic Optical Networking Technologies (Elastic Lambda Project)
Tetsuro Inui, Takafumi Tanaka, Yoshiaki Yamada (NTT), Yutaka Takita, Toru Katagiri (Fujitsu), Hiroshi Hasegawa, Ken-ichi Sato (Nagoya Univ.), Hitoshi Takeshita, Baku Yatabe (NEC), Masahiko Jinno (Kagawa Univ.) PN2017-34
This paper describes the overview of "Research and Development on Elastic Optical Networking Technologies (Elastic Lambd... [more] PN2017-34
pp.41-48
PN, NS, OCS
(Joint)
2017-06-15
12:10
Akita Akita Univ. Failure Recovery Performance Improvement by reachability extension technologies of optical path for flexible grid based optical network
Hitoshi Takeshita, Takefumi Oguma, Shinsuke Fujisawa, Baku Yatabe, Yuta Suzuki, Akio Tajima, Emmanuel Le Taillandier de Gabory (NEC) OCS2017-14
(Advance abstract in Japanese is available) [more] OCS2017-14
pp.17-22
OCS, OPE 2017-05-12
13:05
Tokyo Kikai-Shinko-Kaikan Bldg(Tokyo) [Invited Talk] Report on OFC2017 - Core Transmission -
Hitoshi Takeshita, Emmanuel Le Taillandier de Gabory (NEC) OCS2017-1 OPE2017-1
Optical Fiber Communications (OFC) 2017 was held at Los Angeles, California, USA. In this paper, we will report the tren... [more] OCS2017-1 OPE2017-1
pp.1-4
PN 2017-04-24
15:30
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Recent studies of Disaggregated Optical Transmission System
Shigeyuki Yanagimachi, Hitoshi Takeshita, Shigeru Nakamura, Akio Tajima (NEC) PN2017-4
Recently, argument continues about open system for optical transmission system by AT&T, Google and Facebook. In this pap... [more] PN2017-4
pp.19-25
OCS, CS
(Joint)
2017-01-20
10:45
Fukuoka Kyushu Sangyo University Improvement of band narrowing characteristics of Simplified Optical Cross Connect for improving optical path reachability of elastic optical networks
Baku Yatabe, Yurie Matsuyama, Hitoshi Takeshita, Shinsuke Fujisawa, Takeshi Nakata, Akio Tajima, Takehumi Oguma (NEC) OCS2016-68
In an elastic optical network that enables capacity expansion and flexibility improvement of optical communication syste... [more] OCS2016-68
pp.21-25
OPE, EST, LQE, EMT, PN, MWP, IEE-EMT [detail] 2017-01-19
13:10
Mie Iseshi Kanko Bunka Kaikan [Invited Talk] Elastic Optical Path Control Methods for Highly-Reliable Optical Network
Shinsuke Fujisawa, Hitoshi Takeshita, Akio Tajima (NEC) PN2016-69 EMT2016-98 OPE2016-144 LQE2016-133 EST2016-108 MWP2016-82
Elastic optical path control methods are proposed to enhance failure recovery performance. With the methods, additional ... [more] PN2016-69 EMT2016-98 OPE2016-144 LQE2016-133 EST2016-108 MWP2016-82
pp.157-163
OCS, NS, PN
(Joint)
2016-06-23
11:40
Hokkaido Hokkaido University Proposal and evaluation of a novel Simplified Optical Cross Connect Architecture for enhancement of reachability of elastic optical path
Hitoshi Takeshita, Yurie Matsuyama, Takefumi Oguma, Shinsuke Fujisawa, Akio Tajima (NEC) OCS2016-12
Elastic optical network is promising because of its high spectral efficiency. But, it has a problem that reachability of... [more] OCS2016-12
pp.17-22
NS, OCS, PN
(Joint)
2015-06-19
13:50
Fukui Fukui-shi-chiiki-kouryu A transponder aggregator subsystem using compact and low-loss silicon photonic switch module for CDC-ROADM
Akio Tajima, Shigeyuki Yanagimachi, Shigeru Nakamura, Hitoshi Takeshita, Tomoyuki Hino, Kiyoshi Fukuchi (NEC) OCS2015-20
Optical switch based on silicon photonics technology which enables small size and high scalability is attractive for the... [more] OCS2015-20
pp.49-54
PN, NS, OCS
(Joint)
2014-06-26
15:20
Oita B-ConPlaza Proposal of a distance adaptive optical path planning algorithm for elastic optical network
Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima (NEC) OCS2014-17
We will propose a distance adaptive optical path planning algorithm in order to improve bandwidth usage of elastic optic... [more] OCS2014-17
pp.25-29
PN 2013-11-11
16:25
Tokyo Waseda University [Invited Talk] Examination of Power Saving Effect by Optical Cut-Through Node System using Multi-Standby State Transponders
Kenji Mizutani, Hitoshi Takeshita, Ryuichi Ikematsu (NEC), Kiyo Ishii, Junya Kurumida, Shu Namiki (AIST), Akio Tajima (NEC) PN2013-29
We have developed optical cut-through node system using power saving transponder based on dynamic power management techn... [more] PN2013-29
pp.27-32
OCS, PN, NS
(Joint)
2013-06-21
13:45
Fukushima College of Engineering, Nihon University Development of a scalable transponder aggregator prototype by highly integrated optical switches based on Si photonics technology
Hitoshi Takeshita, Tomoyuki Hino, Shigeru Nakamura, Akio Tajima (NEC), Kiyo Ishii, Junya Kurumida, Shu Namiki (AIST) OCS2013-17
We have developed highly integrated optical switches based on Si photonics technology in order to enlarge capacity and r... [more] OCS2013-17
pp.37-42
OPE, LQE, OCS 2012-10-26
13:05
Miyazaki   Evaluation of cross-talk characteristics of a highly integrated 8x48 transponder aggregator prototype based on Si photonics
Hitoshi Takeshita, Tomoyuki Hino (NEC), Kiyo Ishii, Junya Kurumida, Shu Namiki (AIST), Shigeki Takahashi, Shigeru Nakamura, Akio Tajima (NEC) OCS2012-66 OPE2012-117 LQE2012-83
A prototype 8x48 transponder aggregator based on Si photonics which can be adapted to a commercial ROADM system is demon... [more] OCS2012-66 OPE2012-117 LQE2012-83
pp.129-134
PN, OCS, NS
(Joint)
2011-06-23
12:30
Wakayama Wakayama University In-service identification of signal quality by using wavelength resolved stokes vector analysis
Hitoshi Takeshita, Arihide Noda (NEC), Yoshihiro Kanda, Masatoshi Kagawa, Hitoshi Murai (OKI) OCS2011-11
(Advance abstract in Japanese is available) [more] OCS2011-11
pp.1-6
OPE, LQE, OCS 2009-10-22
16:10
Fukuoka   Observation of PMD induced optical signal degradation by in-service monitoring of SOP vector trajectory on the poincare sphere
Hitoshi Takeshita, Kiyoshi Fukuchi, Satomi Shioiri, Emmanuel L. T. de Gabory (NEC Corp.) OCS2009-56 OPE2009-122 LQE2009-81
In order to supply high speed and reliable communication services stably, it is indispensable to manage signal
quality ... [more]
OCS2009-56 OPE2009-122 LQE2009-81
pp.75-80
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