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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| LQE, OPE, OCS | 2023-11-24 16:05 |
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 pp.25-29 |
| OPE, OCS, LQE | 2022-10-21 10:25 |
Ehime | (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 pp.70-75 |
| OPE, OCS, LQE | 2022-10-21 11:05 |
Ehime | (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 pp.76-81 |
| OPE, LQE, OCS | 2019-11-11 13:05 |
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 pp.1-4 |
| OPE, LQE, OCS | 2018-10-18 16:00 |
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 pp.51-54 |
|
| OCS, OPE | 2017-05-12 16:20 |
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 p.29 |
| LQE, OCS, OPE | 2013-10-25 17:10 |
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 pp.153-158 |
|
| PRMU | 2013-06-10 17:00 |
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 pp.35-40 |
|
| OPE, LQE, OCS | 2012-10-26 09:50 |
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 pp.103-108 |
|
| NS, OCS, PN (Joint) |
2012-06-21 15:10 |
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 pp.23-28 |
| CAS, CS, SIP | 2012-03-09 14:20 |
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 pp.207-212 |
| OCS, LQE, OPE | 2011-10-27 16:30 |
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 pp.93-98 |
| PN, OCS, NS (Joint) |
2011-06-23 15:40 |
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 pp.39-44 |
| OCS, NS, PN (Joint) |
2010-06-24 11:10 |
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 pp.7-12 |
| OCS, LQE, OPE | 2008-10-24 13:15 |
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 pp.137-141 |
| EMD, CPM, LQE, OPE | 2006-08-25 09:15 |
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 pp.55-59 |
| LQE, OPE | 2005-06-24 14:00 |
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 pp.29-34 |
| LQE, OPE | 2005-06-24 14:25 |
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 pp.35-40 |
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