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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 19 of 19  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
OFT 2021-05-13
15:10
Online Online Proposal of TAP Monitor Device for Multi-core Fiber
Asumi Kaya, Taketoshi Takahata, Yosuke Minagawa, Tetsuya Kobayashi (COPTOQUEST) OFT2021-5
In order to solve the communication capacity shortage expected in the future in optical fiber communication, multi-core ... [more] OFT2021-5
pp.17-22
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
OFT, OCS, LSJ
(Joint) [detail]
2019-08-29
14:15
Hokkaido   Verification of input-power dependence of free-space coupling multi-core fiber devices
Tetsuya Kobayashi, Yosuke Minagawa, Masami Miyakozawa, Taketoshi Takahata (OPQ) OCS2019-20
In a multicore fiber (MCF), which is being actively studied as a main platform of space division multiplexing (SDM) tech... [more] OCS2019-20
pp.1-5
OFT, OCS
(Joint)
2015-08-27
15:50
Hokkaido   Design method and experiment of 6-LP mode excitation using free-space optics with phase plate
Shusaku Noda, Taketoshi Takahata, Hiroshi Tsuboya, Tetsuya Kobayashi (OPTOQUEST) OCS2015-31
An analytical design method of free-space optical systems is established that excites LP modes in FMF with low loss and ... [more] OCS2015-31
pp.1-6
OPE, OCS, OFT
(Joint) [detail]
2015-02-20
13:50
Kagoshima   Study of miniaturization of fan-in/fan-out devices using free space optics
Yusaku Tottori, Hiroshi Tsuboya, Tetsuya Kobayashi (Optoquest) OFT2014-78 OPE2014-230
We are developing fan-in/fan-out(FI/FO) devices to connect multi core fiber(MCF) to single mode fibers using free space ... [more] OFT2014-78 OPE2014-230
pp.113-116(OFT), pp.153-156(OPE)
OCS, OFT
(Joint)
2014-08-28
14:50
Hokkaido Kushiro Royal Inn Study on Multicore Fiber connectors
Tetsuya Kobayashi, Haruyuki Endo, Yosuke Minagawa (OPTOQUEST) OCS2014-33
Study on multicore fiber connectors is reported. Features, evaluation results, and future problems are shown for two con... [more] OCS2014-33
pp.13-16
OCS, OPE, OFT
(Joint) [detail]
2014-02-27
16:05
Okinawa nest HOTEL Naha [Invited Talk] Multi-core fiber coupling devices using free space optics and their possible application to other functions
Tetsuya Kobayashi, Yusaku Tottori, Hiroshi Tsuboya, Yosuke Minagawa, Tadashi Hajikano (Optoquest) OCS2013-104 OFT2013-61 OPE2013-211
Recent progress on multi-core fiber (MCF) coupling devices using free space optics is reviewed aiming at overcoming traf... [more] OCS2013-104 OFT2013-61 OPE2013-211
pp.17-22(OCS), pp.35-40(OFT), pp.35-40(OPE)
OFT, OPE, OCS
(Joint) [detail]
2013-02-28
14:50
Tokyo   [Invited Talk] Connection technologies of multi-core fiber by space coupling
Yusaku Tottori, Tetsuya Kobayashi, Masayuki Watanabe (OPTOQUEST) OCS2012-100 OFT2012-72 OPE2012-190
Lens optics technology is reviewed for design and fabrication of fan-in/fan-out device to connect multi-core fiber to si... [more] OCS2012-100 OFT2012-72 OPE2012-190
pp.17-22
LQE, OPE 2011-06-30
14:00
Tokyo Kikai-Shinko-Kaikan Bldg. Technologies on multi-core fiber and spatial division multiplexing enabling extremely advanced optical transmission
Jun Sakaguchi, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi (NICT), Tetsuya Hayashi, Toshiki Taru (SEI), Tetsuya Kobayashi, Masayuki Watanabe (OPTOQUEST) OPE2011-21 LQE2011-21
Future large-scale data transmission requires new technologies to overcome the capacity limit of conventional optical fi... [more] OPE2011-21 LQE2011-21
pp.29-34
PN, OCS, NS
(Joint)
2011-06-23
14:50
Wakayama Wakayama University Transmission of 109-Tb/s SDM/WDM/PDM-QPSK signals through 16.8-km homogeneous 7-core fiber
Jun Sakaguchi, Yoshinari Awaji, Naoya Wada (NICT), Tetsuya Hayashi, Toshiki Taru (SEI), Tetsuya Kobayashi, Masayuki Watanabe (OPTOQUEST) OCS2011-16
Multi-core fiber has been expected as an innovative device to enable extremely-large-scale data transmission beyond the ... [more] OCS2011-16
pp.27-31
OCS, OPE
(Joint)
2011-05-13
14:25
Tokyo Kikai-Shinko-Kaikan Bldg. 5-km Transmission of Spatial and Wavelength Division Multiplexed 10-Gb/s Channels using Heterogeneous Seven-core Fiber
Jun Sakaguchi, Yoshinari Awaji, Naoya Wada (NICT), Tetsuya Hayashi, Takuji Nagashima (SEI), Tetsuya Kobayashi, Masayuki Watanabe (OPTOQUEST) OCS2011-4
Multi-core fiber has been expected as an innovative device to enable extremely-large-scale data transmission beyond the ... [more] OCS2011-4
pp.15-19
US 2011-02-21
13:00
Ibaraki   Basic study on silencing system using thermoacoustic phenomenon for practical use
Daichi Tsukamoto (Doshisha Univ.), Shin-ichi Sakamoto (Univ. of Shiga Pref.), Tetsuya Kobayashi, Kohei Yanagimoto, Yoshiaki Watanabe (Doshisha Univ.) US2010-117
Attenuation and amplification effect of sound wave is achieved in a stack of energy conversion part by using thermoacous... [more] US2010-117
pp.27-32
US 2010-10-19
16:45
Tokyo Nihon Univ. Study for practical use of thermoacoustic cooling system -- Approach to realization of new cooling system applying solar energy --
Tetsuya Kobayashi (Doshisha Univ.), Shin-ichi Sakamoto (Univ. of Shiga Pref.), Yuji Kitadani, Kazuki Sahashi, Yoshiaki Watanabe (Doshisha Univ.) US2010-77
Thermoacoustic cooling system can cool by the inputting heat. We use the solar energy which constantly falls to earth as... [more] US2010-77
pp.39-44
IT, ISEC, WBS 2010-03-05
09:25
Nagano Nagano-Engineering Campus, Shinshu University Collision Attack on DM Compression Function Using Reduced AES-256
Tetsuya Kobayashi, Shoichi Hirose (Univ. Fukui) IT2009-131 ISEC2009-139 WBS2009-110
In 2009, Khovratovich, Biryukov and Nikoli\'{c} presented a kind of
collision attack on the Davies-Meyer (DM) compressi... [more]
IT2009-131 ISEC2009-139 WBS2009-110
pp.385-390
EA, US
(Joint)
2010-01-25
15:40
Osaka   Basic study for silencer by using thermoacoustic phenomenon -- Approaches to silencing efficiency increase by multistage stack method --
Daichi Tsukamoto (Doshisha Univ.), Shin-ichi Sakamoto (Univ. of Shiga prefecture), Tetsuya Kobayashi, Yoshiaki Watanabe (Doshisha Univ.) US2009-96 EA2009-104
 [more] US2009-96 EA2009-104
pp.47-52(US), pp.29-34(EA)
US 2009-12-18
16:15
Kanagawa Suzukakedai Campus, Tokyo Institute of Technology A thermoacoustic cooling system for a practical use -- The effect of pipe configuration and material on conversion efficiency in the neighborhood of heat source --
Yu Oishi (Doshisha Univ.), Shin-ichi Sakamoto (Univ. of Shiga Prefecture), Tetsuya Kobayashi, Yoshiaki Watanabe (Doshisha Univ.) US2009-86
We examine the effect of pipe configuration and material on heat leakage in the neighborhood of heat source to improve e... [more] US2009-86
pp.35-40
MI 2009-01-19
13:30
Overseas National Taiwan University [Poster Presentation] Implementation of statistical 3D-PET image reconstruction with motion correction
Shoko Kinouchi (Chiba Univ.), Taiga Yamaya (National Institute of Radiological Sciences), Tomoyuki Hasegawa (Kitasato Univ.), Tetsuya Kobayashi (Tsukuba Univ.), Hideo Murayama (National Institute of Radiological Sciences), Mikio Suga (Chiba Univ.) MI2008-93
The patient’s movements during the measurement process induce an artifact in the reconstructed image in high resolution ... [more] MI2008-93
pp.163-164
OCS 2005-06-17
10:55
Yamanashi Univ. of Yamanashi Diffraction Properties and Beam-Propagation Analysis of Waveguide-Type Acoustooptic Modulator Driven by Surface Acoustic Wave
Shoji Kakio, Shinji Uotani, Yasuhiko Nakagawa (Univ. of Yamanashi), Takefumi Hara, Hiromasa Ito (RIEC, Tohoku Univ.), Tetsuya Kobayashi, Masayuki Watanabe (Optoquest)
 [more] OCS2005-29
pp.17-22
WBS, SIP 2004-07-22
15:45
Niigata NICO PLAZA, Niigata Restoration from Image Degraded by White Noise Based on Iterative Spectrum Subtraction Method
Tetsuya Kobayashi, Tetsuya Shimamura (Saitama Univ), Tetsuo Hosoya, Yoshitake Takahasi (Daiichi Radioisotope Laboratories Ltd)
 [more] WBS2004-24 SIP2004-43
pp.51-56
 Results 1 - 19 of 19  /   
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