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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2022-11-08
(Primary: On-site, Secondary: Online)
Proposal of a method for acquiring optical signal transmission characteristics using an inter-band all-optical wavelength converter suitable for All-Photonics Network
Haruka Minami, Kenta Hirose, Takafumi Fukatani, Masahiro Nakagawa, Takeshi Seki, Shimpei Shimizu, Takayuki Kobayashi, Takushi Kazama, Koji Enbutsu, Kei Watanabe, Takeshi Umeki, Takashi Miyamura (NTT) PN2022-30
All-Photonics Network (APN) aims at a large-capacity, low-latency, and low-energy-consumption network infrastructure by ... [more] PN2022-30
OPE, OCS, LQE 2022-10-21
(Primary: On-site, Secondary: Online)
[Invited Talk] WDM Transmission in S-Band Using PPLN-Based Wavelength Converters Terminated with 400-Gb/s C-Band Real-Time Transceivers
Tomoyuki Kato, Hidenobu Muranaka, Yu Tanaka, Yuichi Akiyama, Takeshi Hoshida (Fujitsu), Shimpei Shimizu, Takayuki Kobayashi, Takushi Kazama, Takeshi Umeki, Kei Watanabe, Yutaka Miyamoto (NTT) OCS2022-30 OPE2022-76 LQE2022-39
As a preliminary verification to demonstrate multi-band WDM transmission beyond the C+L-band without waiting for the new... [more] OCS2022-30 OPE2022-76 LQE2022-39
ICD, CPSY, CAS 2018-12-21
Okinawa   Surveying Function of Tourism Assistance Apps in Fujisawa Area
Toshihiro Tachibana, Hikaru Habuto, Shogo Tanaka, Tomohiro Chosa, Kei Watanabe, Takashi Satake (Shonan Inst. of Tech.) CAS2018-83 ICD2018-67 CPSY2018-49
Fujisawa City, Kanagawa Prefecture is the central city of Shonan area. It has sightseeing resources, including Enoshima ... [more] CAS2018-83 ICD2018-67 CPSY2018-49
ICD, CPSY, CAS 2018-12-23
Okinawa   On Reward Sharing for Multi-agent Games Using Deep Reinforcement Learning
Kei Watanabe, Toshihiro Tachibana (Shonan Isnt. of Tech.) CAS2018-107 ICD2018-91 CPSY2018-73
In this paper, we consider a method to realize multi agent system with multiple agents cooperating by deep reinforcement... [more] CAS2018-107 ICD2018-91 CPSY2018-73
LOIS 2017-03-02
Okinawa N.Ohama Memorial Hall Study on Tourism Demand Trends in Fujisawa Area Using Smartphone Applications
Toshihiro Tachibana (Shonan Institute of Tech.), Michiya Inoue (Tokyo Denki Univ.), Nguyen Kim Tuan Anh, Kenta Okada, Sayumi Kizu, Mitsuru Saito, Takashi Satake, Tsubasa Sato, Tomohiro Chosa, Kei Watanabe (Shonan Institute of Tech.) LOIS2016-79
Fujisawa City, Kanagawa Prefecture is the central city of the Shonan area, which has sightseeing resources including Eno... [more] LOIS2016-79
ICD 2012-12-17
Tokyo Tokyo Tech Front [Poster Presentation] About the system simulation methodology for the switching power converters
Kei Watanabe, Tatsuya Furukawa, Yasuhiro Sugimoto (Chuo Univ.) ICD2012-106
We propose the use of behavioral simulation tools in designing circuits and systems of switching converters. Applying ou... [more] ICD2012-106
SDM 2011-02-07
Tokyo Kikai-Shinko-Kaikan Bldg. A highly reliable Cu interconnect with CuSiN and Ti-based barrier metal: Impact of oxgen surface treatment
Yumi Hayashi, Noriaki Matsunaga, Makoto Wada, Shinichi Nakao, Kei Watanabe, Satoshi Kato, Atsuko Sakata, Akihiro Kajita, Hideki Shibata (Toshiba Corp.) SDM2010-219
A trade-off property of CuSiN between EM improvement and line resistance increase was resolved by a breakthrough that le... [more] SDM2010-219
OPE 2010-12-17
Tokyo Kikai-Shinko-Kaikan Bldg. Extremely low power consumption silicon-silica hybrid thermooptic switch
Yasuaki Hashizume, Tai Tsuchizawa, Toshifumi Watanabe, Koji Yamada, Seiichi Itabashi, Kei Watanabe, Ryoichi Kasahara, Yusuke Nasu, Mikitaka Itoh (NTT) OPE2010-134
 [more] OPE2010-134
SDM 2010-02-05
Tokyo Kikai-Shinko-Kaikan Bldg. Low resistive and highly reliable copper interconnects in combination of silicide-cap with Ti-barrier for 32 nm-node and beyond
Yumi Hayashi, Noriaki Matsunaga, Makoto Wada, Shinichi Nakao, Atsuko Sakata, Kei Watanabe, Hideki Shibata (Toshiba) SDM2009-187
Silicide-cap for Cu interconnects is promising for enhancing electromigration (EM) performance for 32 nm-node and beyond... [more] SDM2009-187
PN, OPE, EMT, LQE 2009-01-30
Kyoto Kyoto Institute Technology (Matsugasaki Campus) Fabrication of micromirror array embedded in PLC and stacked integration of in-line power monitor
Hirofumi Yamazaki, Ikuo Ogawa (NTT), Masahiro Yanagisawa (NTT-EL), Kei Watanabe, Akimasa Kaneko (NTT) PN2008-70 OPE2008-173 LQE2008-170
Regarding advanced optical network systems, there is a strong demand for optical modules which integrates multiple optic... [more] PN2008-70 OPE2008-173 LQE2008-170
LQE, CPM, EMD, OPE 2008-08-28
Miyagi Touhoku Univ. Channel-by-channel tunable optical dispersion compensator using arrayed-waveguide grating and liquid crystal on silicon
Kazunori Seno, Kenya Suzuki, Kei Watanabe, Naoki Ooba, Motohaya Ishii, Shinji Mino (NTT) EMD2008-40 CPM2008-55 OPE2008-70 LQE2008-39
In this report, we propose and demonstrate a tunable optical dispersion compensator consisting of an arrayed-waveguide g... [more] EMD2008-40 CPM2008-55 OPE2008-70 LQE2008-39
OPE 2007-05-25
Tokyo Kikai-Shinko-Kaikan Bldg. Ultra low power consumption silica-based PLC-VOA switches.
Kei Watanabe, Yasuaki Hashizume, Yusuke Nasu, Masaki Kohtoku, Mikitaka Itoh, Yasuyuki Inoue (NTT) OPE2007-14
We achieved a silica based PLC thermo-optic switch with a power consumption only 30 mW without any deterioration in the ... [more] OPE2007-14
OPE 2006-05-19
Tokyo Kikai-Shinko-Kaikan Bldg. Three-wavelength Optical Transceiver Module for GE-PON using Silicon Bench-based PLC Hybrid Integration
Hidenobu Hirota, Kei Watanabe, Yasuaki Hashizume, Yasuhiko Nakanishi, Jun Endo, Ikuo Ogawa, Masaki Kohtoku, Takeshi Kurosaki, Masahiro Yanagisawa, Yasuyuki Inoue (NTT)
We demonstrate a 1.3/1.49/1.55 um wavelength division multiplexing (WDM) transceiver module using silicon bench-based pl... [more] OPE2006-8
LQE, PN, OPE, OFT, EMT 2006-02-01
Hyogo Kobe Univ. Application of Si・Er-codoped SiO2 films to optical waveguide amplifiers
Masahiko Sumitomo, Tetsuya Adachi, Keita Murakami, Kazuyuki Moriwaki (Grad. School, Kobe Univ.), Minoru Fujii, Shinji Hayashi (Kobe Univ.), Kei Watanabe (NTT)
Waveguide propagation losses ($\lambda$:1.55$\mu$m) in Si nanocrystals and Er codoped $SiO_2$ films were measured with v... [more] PN2005-83 OFT2005-70 OPE2005-131 LQE2005-146
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