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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 18 of 18  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
LQE, OPE, OCS 2023-11-24
Online Online [Special Invited Talk] O+S+C+L+U-Band Digital Coherent DWDM Transmission Using a Deployed Optical Cable
Daiki Soma (KDDI Research), Tomoyuki Kato (Fujitsu), Shohei Beppu, Daniel J. Elson (KDDI Research), Hidenobu Muranaka, Hiroyuki Irie, Shun Okada, Yu Tanaka (Fujitsu), Yuta Wakayama, Noboru Yoshikane (KDDI Research), Takeshi Hoshida (Fujitsu), Takehiro Tsuritani (KDDI Research) OCS2023-54 OPE2023-104 LQE2023-51
We demonstrate an O+S+C+L+U-band digital coherent DWDM transmission system as an upgrade scenario from a C+L-band system... [more] OCS2023-54 OPE2023-104 LQE2023-51
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
OPE, OCS, LQE 2022-10-21
(Primary: On-site, Secondary: Online)
Characterization of wideband wavelength conversion by dispersion-tailored Silicon waveguide
Shun Okada, Hidenobu Muranaka, Tomoyuki Kato, Tokuharu Kimura, Yu Tanaka, Tsuyoshi Yamamoto (Fujitsu), Isaac Sackey, Gregor Ronniger, Carsten Schmidt-Langhorst, Robert Elschner, Colja Schubert (HHI), Takeshi Hoshida (Fujitsu) OCS2022-31 OPE2022-77 LQE2022-40
A wideband transmission system utilizing S+C+L band has been investigated in which C-band signals are converted to S-ban... [more] OCS2022-31 OPE2022-77 LQE2022-40
OPE, LQE, OCS 2019-11-11
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Invited Talk] Report on ECOC2019 -- Core Transmission --
Tomoyuki Kato (Fujitsu) OCS2019-51 OPE2019-89 LQE2019-67
(Advance abstract in Japanese is available) [more] OCS2019-51 OPE2019-89 LQE2019-67
OPE, LQE, OCS 2018-10-18
Saga   [Invited Talk] Fiber-optic Frequency Shifting of THz-range WDM Signal using Orthogonal Pump-signal Polarization Configuration
Tomoyuki Kato, Shigeki Watanabe, Takahito Tanimura (Fujitsu Lab), Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert (HHI), Takeshi Hoshida (Fujitsu Lab) OCS2018-37 OPE2018-73 LQE2018-62
We propose a nonlinear fiber-based optical frequency shifter using two CW pumps orthogonally polarized to optical signal... [more] OCS2018-37 OPE2018-73 LQE2018-62
OCS, OPE 2017-05-12
Tokyo Kikai-Shinko-Kaikan Bldg(Tokyo) [Special Invited Talk] Continuously Tunable Optical Frequency Shifter by Polarization Switched Frequency Conversion
Tomoyuki Kato, Shigeki Watanabe, Takahito Tanimura (Fujitsu Laboratories Ltd.), Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert (HHI), Takeshi Hoshida (Fujitsu Laboratories Ltd.) OCS2017-8 OPE2017-8
We propose an optical frequency shifter for contention resolutions which allows continuously tunable frequency shift inc... [more] OCS2017-8 OPE2017-8
LQE, OCS, OPE 2013-10-25
Fukuoka   Precisely frequency allocated multiplexing at distributed point using fiber frequency conversion
Tomoyuki Kato, Ryo Okabe (Fujitsu Lab.), Thomas Richter, Robert Elschner, Carsten Schmidt-Langhorst, Colja Schubert (HHI), Shigeki Watanabe (Fujitsu Lab.) OCS2013-80 OPE2013-126 LQE2013-96
We extend our investigation on a recently proposed concept for distributed optical frequency division multiplexing (CO-O... [more] OCS2013-80 OPE2013-126 LQE2013-96
PRMU 2013-06-10
Tokyo   The study of identifying people method by using tablet sensors
Akihiro Katagiri, Tomoyuki Kato, Ryuta Nakagawa, Katsumasa Nagahama, Keiji Shimada (AsahiKASEI) PRMU2013-25
We considered the method of identifying people by using tablet sensors. We focused the features the people lift a tablet... [more] PRMU2013-25
OPE, LQE, OCS 2012-10-26
Miyazaki   Investigation of Operation Performance of a Semiconductor-Integrated SOA-MZI-Type All-Optical Flip-Flop Circuit with a Feedback Loop
Yusuke Naito, Satoshi Shimizu, Tomoyuki Kato, Kohroh Kobayashi, Hiroyuki Uenohara (Tokyo Tech) OCS2012-61 OPE2012-112 LQE2012-78
 [more] OCS2012-61 OPE2012-112 LQE2012-78
Yamagata Yamagata Univ. Frequency Conversion, Synchronization Control, and Multiplexing Using Cross-Phase Modulation
Tomoyuki Kato, Ryo Okabe (Fujitsu lab.), Robert Elschner, Thomas Richter, Colja Schubert (HHI), Shigeki Watanabe (Fujitsu lab.) OCS2012-13
(Advance abstract in Japanese is available) [more] OCS2012-13
CAS, CS, SIP 2012-03-09
Niigata The University of Niigata Constructing Rectangular Duals for Designing Layouts of a Multi-Layered Printed Wiring Board with Prescribed Sizes
Tomoyuki Katoh, Daisuke Takafuji, Toshimasa Watanabe (Hiroshima Univ.) CAS2011-144 SIP2011-164 CS2011-136
 [more] CAS2011-144 SIP2011-164 CS2011-136
OCS, LQE, OPE 2011-10-27
Kochi Kochi University of Technology Investigation of Operation Conditions for a Passively mode-Locked VCSEL with a Concave Mirror
Hiroshi Takanashi, Tomoyuki Kato, Kohroh Kobayashi, Hiroyuki Uenohara (Tokyo Tech) OCS2011-71 OPE2011-109 LQE2011-72
A mode-locked VCSEL structure with double-path resonance configuration using an external concave mirror is a promising c... [more] OCS2011-71 OPE2011-109 LQE2011-72
Wakayama Wakayama University All-optical Data Frequency Multiplexing on Single-Wavelength Carrier Light by Sequentially Provided Cross-Phase Modulation in Fiber
Shigeki Watanabe, Tomoyuki Kato, Ryo Okabe (Fujitsu Labs.), Robert Elschner, Reinhold Ludwig, Colja Schubert (HHI) OCS2011-18
A novel configuration for an all-optical bus-topology data-multiplexing system is proposed in which multichannel signals... [more] OCS2011-18
Akita Akita University Investigation on the reduction of signal amplitude fluctuation using limiting amplification with optical fiber parametric limiter amplifier
Tomoyuki Kato, Ryo Okabe, Shigeki Watanabe (Fujitsu lab.) OCS2010-12
(Advance abstract in Japanese is available) [more] OCS2010-12
OCS, LQE, OPE 2008-10-24
Fukuoka Kyushu Univ. Active mode-locked VCSEL using external concave mirror with high repetition rate and low threshold current
Tomoyuki Kato, Hiroshi Takanashi, Akihiro Matsutani, Takahiro Sakaguchi, Kohroh Kobayashi (Tokyo Inst. of Tech.) OCS2008-74 OPE2008-117 LQE2008-86
 [more] OCS2008-74 OPE2008-117 LQE2008-86
EMD, CPM, LQE, OPE 2006-08-25
Hokkaido Chitose Arcadia Plaza Analysis of oscillation condition of composite resonator
Tomoyuki Kato, Kohroh Kobayashi (Titech)
Composite resonators, which are formed by placing the external reflection mirror to the VCSEL, are attractive due to pos... [more] EMD2006-35 CPM2006-65 OPE2006-77 LQE2006-42
LQE, OPE 2005-06-24
Tokyo Kikai-Shinko-Kaikan Bldg. Experimental Study on Optimum Coupling Efficiency of Double Series Coupled Microring Resonator
Tomoyuki Kato, Yuta Goebuchi, Yasuo Kokubun (Yokohama National Univ.)
 [more] OPE2005-20 LQE2005-19
LQE, OPE 2005-06-24
Tokyo Kikai-Shinko-Kaikan Bldg. Optimum arrangement of high-order series coupled microring resonator for crosstalk reduction
Yuta Goebuchi, Tomoyuki Kato, Yasuo Kokubun (Yokohama National Univ)
Series coupling of microring resonators with differenct ring radii is effective to expand the FSR to be greater than 20n... [more] OPE2005-21 LQE2005-20
 Results 1 - 18 of 18  /   
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