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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 21  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2024-03-14
11:10
Kagoshima
(Primary: On-site, Secondary: Online)
100 GBaud Superchannel Transmission Experiment in CTR Mode
Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.)
(To be available after the conference date) [more]
PN 2024-03-15
09:00
Kagoshima
(Primary: On-site, Secondary: Online)
Research on QAM symbol block cipher using space-time digital key transformation
Reika Suketomo, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.)
(To be available after the conference date) [more]
PN 2023-08-29
10:05
Hokkaido
(Primary: On-site, Secondary: Online)
Optical fiber long-distance multi-repeater transmission experiment of phase-shifted symbol-preserving encrypted polarization-multiplexed QAM signals
Reika Suketomo, Yuika Mori, Hodaka Amano, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2023-16
We have demonstrated that phase-shifted symbol-preserving encryption does not cause excessive degradation in 7 ch WDM 32... [more] PN2023-16
pp.1-5
PN 2023-08-29
10:30
Hokkaido
(Primary: On-site, Secondary: Online)
Polarization and IQ multiplexing 4ASK downlink transmission experiment of P-to-MP system using phase shift symbol preserved encryption
Yuika Mori, Reika Suketomo, Hodaka Amano, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2023-17
We have already reported downlink transmission using adaptive IQ imbalanced 4ASK signal for groups of ONUs with differen... [more] PN2023-17
pp.6-10
CS, CQ
(Joint)
2023-05-19
16:05
Kagawa Rexxam Hall (Kagawa Kenmin Hall)
(Primary: On-site, Secondary: Online)
Demonstration of IQ channel multiplexing coherent polarization multiplexing 4ASK signal in downlink transmission with distance difference in access span
Keiji Shimada, Mizuki Inagaki (Kagawa Univ), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ) CS2023-16
In the coherent PON system, the transmission distance from each optical network unit to the optical line terminal is dif... [more] CS2023-16
pp.47-50
ITE-BCT, OCS, IEE-CMN, OFT 2022-11-11
13:00
Miyagi Forest-Sendai
(Primary: On-site, Secondary: Online)
Learning-based digital back propagation considering cross-phase modulation in wavelength-division multiplexed transmission systems
Takashi Inoue, Ryosuke Matsumoto, Shu Namiki (AIST) OCS2022-44
We propose a scheme to compensate waveform distortion of optical signals due to fiber nonlinearity in wavelength-divisio... [more] OCS2022-44
pp.24-29
PN 2022-08-30
10:50
Hokkaido
(Primary: On-site, Secondary: Online)
Experimental of Symbol-rate-adaptive Multi-band Coherent Transceiver
Momoka Masaoka, Takahiro Kodama, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto, Takashi Inoue, Shu Namiki (AIST), Masahiko Jinno (Kagawa Univ.) PN2022-18
 [more] PN2022-18
pp.54-59
EMD, R, LQE, OPE, CPM 2022-08-26
15:10
Chiba  
(Primary: On-site, Secondary: Online)
[Invited Talk] Recent Advances in Large-Scale Silicon Photonics Switches for Polarization-Insensitive and Broadband Operations
Keijiro Suzuki, Ryotaro Konoike, Hiroyuki Matsuura, Ryosuke Matsumoto, Takashi Inoue, Shu Namiki, Hitoshi Kawashima, Kazuhiro Ikeda (AIST) R2022-29 EMD2022-17 CPM2022-34 OPE2022-60 LQE2022-23
In this report, we describe our results on strictly-non-blocking multi-port switches using silicon photonics. We reporte... [more] R2022-29 EMD2022-17 CPM2022-34 OPE2022-60 LQE2022-23
pp.66-69
OCS, CS
(Joint)
2022-01-14
11:25
Yamaguchi Conference room 204A・B at KDDI Ishin-hall
(Primary: On-site, Secondary: Online)
Application Study of Downlink Coherent Method and Uplink SIMO Reception in TWDM-PON System with Link Redundancy
Tomoya Nakagawa (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) OCS2021-37
A 40 Gbit/s class time division multiple access passive optical network (TWDM-PON: Time and wavelength division multiple... [more] OCS2021-37
pp.22-27
OCS, CS
(Joint)
2022-01-14
13:05
Yamaguchi Conference room 204A・B at KDDI Ishin-hall
(Primary: On-site, Secondary: Online)
[Invited Talk] Silicon Photonic Switch and Digitalization of the Optical Layer -- Challenges Toward the Photonic Platform --
Shu Namiki, Ryosuke Matsumoto, Takashi Inoue, Kiyo Ishii (AIST) CS2021-73
This talk will review the recent advances on the research of silicon photonics based optical switching mainly at AIST, t... [more] CS2021-73
pp.30-42
OCS, OPE, LQE 2021-10-22
16:05
Online Online [Special Invited Talk] Multistage operation of fully-loaded 32 × 32 Silicon Photonics Switch
Ryosuke Matsumoto, Ryotaro Konoike, Keijiro Suzuki, Hiroyuki Matsuura, Kazuhiro Ikeda, Takashi Inoue, Shu Namiki (AIST) OCS2021-17 OPE2021-37 LQE2021-16
Thermo-optic silicon photonics switch offers significantly better energy efficiency and bandwidth with a fast switching ... [more] OCS2021-17 OPE2021-37 LQE2021-16
pp.23-26
PN 2021-08-30
13:00
Online Online [Invited Talk] Large-scale and fast optical circuit switch for intra data centers
Ryosuke Matsumoto, Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki (AIST), Yojiro Mori (Nagoya Univ.), Takashi Inoue, Kazuhiro Ikeda, Shu Namiki, Ken-ichi Sato (AIST) PN2021-15
Current intra-data center networks face the bandwidth crunch and power consumption limitation of electrical switches. On... [more] PN2021-15
pp.21-27
PN 2021-08-31
14:50
Online Online Evaluation of power adaptive IQ multiplexed 16QAM method for downlink transmission of coherent PON system
Mizuki Inagaki (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) PN2021-24
In the downlink transmission of a coherent PON system using QAM modulation, when IQ multiplexing, which allocates I-axis... [more] PN2021-24
pp.69-73
PN, NS, OCS
(Joint)
2021-06-25
15:25
Online Online Full-coupling or half-split switchable point-to-multipoint optical transmission system
Tomoya Nakagawa, Tetsuji Goto (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.) OCS2021-7
Recently, a point-to-multipoint network configuration with disaster resistance is required in the mobile front hall conn... [more] OCS2021-7
pp.29-34
OFT, ITE-BCT, OCS, IEE-CMN [detail] 2020-11-12
16:00
Online Online Scalable and Fast Optical Circuit Switch based on Colorless Coherent Detection and Silicon-Photonic Tunable-Filter-based Local Oscillator -- Design Principle and Experimental Demonstration --
Ryosuke Matsumoto, Takashi Inoue, Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki (AIST), Mori Yojiro (Nagoya Univ.), Kazuhiro Ikeda, Shu Namiki, Ken-ichi Sato (AIST) OCS2020-24
(Advance abstract in Japanese is available) [more] OCS2020-24
pp.5-10
OPE, OCS, LQE 2018-05-11
13:50
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Invited Talk] Report on OFC2018 -- Optical Access --
Ryosuke Matsumoto (MItsubishi Electric) OCS2018-2 OPE2018-2 LQE2018-2
(Advance abstract in Japanese is available) [more] OCS2018-2 OPE2018-2 LQE2018-2
pp.5-8
NLP 2016-05-27
10:15
Kochi Kochi Univ. Implementation of parallel particle swarm optimizers on PC cluster
Hidehiro Nakano, Ryosuke Matsumoto, Tomoyuki Sasaki, Arata Miyauchi (Tokyo City Univ.) NLP2016-13
This paper proposes an implementation method of the particle swarm optimizer (PSO) to PC cluster. In PSO, many particles... [more] NLP2016-13
pp.63-66
PN 2016-03-08
13:50
Okinawa Okinawaken Seinenkaikan Cascaded SSFBG Encoder/Decoder for 10G-WDM-OCDMA system
Ryosuke Tamada, Ryosuke Matsumoto (Osaka Univ.), Hiroki Ishihara, Koji Omichi (Fujikura), Ken-ichi Kitayama (Osaka Univ.) PN2015-119
WDM-OCDMA using multiple wavelengths and optical codes can increase the number of subscribers. Superstructured Fiber Bra... [more] PN2015-119
pp.91-97
OCS, OPE, LQE 2014-10-31
11:10
Nagasaki Nagasaki Museum of History and Culture A study on full-duplex PAM technique in RSOA-based optical access system
Ryosuke Matsumoto (Osaka Univ.), Christos Stamatiadis (TUB), Yuki Yoshida, Akihiro Maruta, Ken-ichi Kitayama (Osaka Univ.) OCS2014-73 OPE2014-117 LQE2014-91
Since Reflective semiconductor amplifier (RSOA) can simultaneously amplifies and modulates the input waveform, it can ag... [more] OCS2014-73 OPE2014-117 LQE2014-91
pp.163-167
IA, IPSJ-IOT, SITE [detail] 2014-02-27
16:25
Ishikawa Hotel Rurikoh An Efficient Judging Method of a Large Amount of E-mails Having the Same Sender and Recipient Addresses
Yoshiharu Tsuzaki, Ryosuke Matsumoto, Daisuke Kotani, Shuichi Miyazaki, Yasuo Okabe (Kyoto Univ.) SITE2013-62 IA2013-87
With the wide use of e-mail, it has become commonly expected that e-mails are delivered to recipients immediately. It is... [more] SITE2013-62 IA2013-87
pp.61-66
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