Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
PN |
2024-03-15 16:10 |
Kagoshima |
(Primary: On-site, Secondary: Online) |
A Study of Coherent Downstream Transmission of Adaptive Polarization and IQ Multiplexed Signals with Asymmetric Number of Signal Points and Amplitude Yuika Mori, Keiji Shimada, Takahiro Kodama (Kagawa Univ.) PN2023-92 |
We have already reported downlink transmission using IQ multiplexed 4ASK signals with power loading for the difference i... [more] |
PN2023-92 pp.127-130 |
PN |
2023-11-16 15:30 |
Ehime |
(Primary: On-site, Secondary: Online) |
[Invited Talk]
Free-space optical communications using photonic-crystal surface-emitting lasers Shota Ishimura (KDDI Research.), Ryohei Morita, Takuya Inoue (Kyoto Univ.), Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani (KDDI Research.), Menaka De Zoysa, Kenji Ishizaki (Kyoto Univ.), Masatoshi Suzuki (KDDI Research.), Susumu Noda (Kyoto Univ.) PN2023-41 |
Recently, the application of optical communication in space has been actively discussed. Compared to microwaves or milli... [more] |
PN2023-41 pp.27-32 |
RISING (3rd) |
2023-10-31 14:00 |
Hokkaido |
Kaderu 2・7 (Sapporo) |
[Poster Presentation]
Digital Signal Processing Based on Neural Networks
-- The Key Technology for Realizing High-capacity Optical Fiber Communication Systems -- Takuro Ochiai, Reiji Higuchi, Takuma Kuno (Nagoya Univ.), Ryuta Shiraki (Kyoto Univ.), Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) |
To fulfil the ever-increasing traffic demands, the introduction of quadrature amplitude modulation and coherent detectio... [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 |
MWPTHz, PN, EMT, IEE-EMT [detail] |
2023-01-24 10:05 |
Osaka |
(Primary: On-site, Secondary: Online) |
Digital Coherent Receiver with Quantization Noise Mitigation Function Takuro Ochiai, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) PN2022-37 EMT2022-75 MWPTHz2022-63 |
To fulfil the ever-increasing traffic demands, the introduction of quadrature amplitude modulation (QAM) / coherent dete... [more] |
PN2022-37 EMT2022-75 MWPTHz2022-63 pp.35-38 |
OCS, CS (Joint) |
2023-01-12 13:25 |
Fukuoka |
CANAL CITY HAKATA (Primary: On-site, Secondary: Online) |
[Invited Talk]
Digital Coherent Technology for Short-Range Optical Communications Toward Beyond 400G Hiroshi Miura, Junichi Suzuki, Nobuo Ohata, Keita Mochizuki, Naoki Suzuki (Mitsubishi Electric) OCS2022-60 |
Digital coherent transmission technology is expected to expand its application to short-haul optical communication appli... [more] |
OCS2022-60 pp.2-5 |
OCS, CS (Joint) |
2023-01-13 15:10 |
Fukuoka |
CANAL CITY HAKATA (Primary: On-site, Secondary: Online) |
An eavesdropping model for constellation-preserving simple symbol encryption and its evaluation Keiji Shimada, Takahiro Kodama (Kagawa Univ.) OCS2022-67 |
We have proposed constellation-preserving simple symbol encryption that keeps the arrangement of symbol points containin... [more] |
OCS2022-67 pp.39-44 |
PN |
2022-11-08 11:00 |
Kochi |
(Primary: On-site, Secondary: Online) |
Modulation and Demodulation Method for Short-Haul Coherent Optical Fiber Communication Systems Reiji Higuchi, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) PN2022-28 |
To cope with the increase of communication traffic, we need to expand the communication capacity of short-haul optical f... [more] |
PN2022-28 pp.39-43 |
OPE, OCS, LQE |
2022-10-21 12:30 |
Ehime |
(Primary: On-site, Secondary: Online) |
Basic Investigation of Si Photonics-Based Compact Wavelength Locker Chip Junichi Suzuki, Kiyotomo Hasegawa, Kei Masuyama, Nobuo Ohata, Hiroshi Aruga (Mitsubishi Electric) OCS2022-32 OPE2022-78 LQE2022-41 |
In this paper, we propose a compact Si photonics-based wavelength locker as well as a wavelength monitoring method for t... [more] |
OCS2022-32 OPE2022-78 LQE2022-41 pp.82-85 |
NS |
2022-10-06 09:40 |
Hokkaido |
Hokkaidou University + Online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Low Computation-Complexity Digital Coherent Receivers for Short-Reach Optical Fiber Communication Systems Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) NS2022-90 |
To process increasing intra-datacenter traffic cost-effectively, it is urgent to expand the capacity of short-reach opti... [more] |
NS2022-90 pp.60-63 |
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-20 11:40 |
Hokkaido |
Asahikawa Civic Culture Hall (Primary: On-site, Secondary: Online) |
Development of Coherent Optical Receiver Integrated with Spatial Tracking Sensor Hitomi Ono, Tomohiro Akiyama, Eisuke Haraguchi, Toshiyuki Ando (MELCO) EMT2022-43 MW2022-67 OPE2022-46 EST2022-44 MWPTHz2022-41 |
The optical satellite communication system with high-speed, small size and low power consumption is required because of ... [more] |
EMT2022-43 MW2022-67 OPE2022-46 EST2022-44 MWPTHz2022-41 pp.174-177 |
OCS, PN, NS (Joint) |
2022-06-10 13:25 |
Online |
Online |
Decoding Complexity Reduction of Forward Error Correction by Channel-polarized Multilevel Coding Takeshi Kakizaki, Masanori Nakamura, Fukutaro Hamaoka, Yoshiaki Kisaka (NTT) OCS2022-11 |
In a digital coherent optical communication system, it is necessary to design a forward error correction (FEC) and modul... [more] |
OCS2022-11 pp.6-11 |
PN |
2022-03-01 13:50 |
Online |
Online |
Multifunctional and High-Performance Digital Coherent Receivers Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.) PN2021-60 |
To process steeply increasing internet traffic cost-effectively, it is urgent to increase the capacity of optical fiber ... [more] |
PN2021-60 pp.42-46 |
PN |
2022-03-02 09:50 |
Online |
Online |
Initial study of pseudo-phase noise-based symbol masked polarization-multiplexed M-QAM signal using a time-spreading encryption key Keiji Shimada, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) PN2021-70 |
In recent years, a common key cryptosystem for the physical layer has been introduced in digital signals to keep the dat... [more] |
PN2021-70 pp.92-97 |
PN |
2022-03-02 15:10 |
Online |
Online |
Experimental study of all double link failure tolerant path pair shared protection for fully coupled/half-split switchable point-to-multipoint optical NW Tomoya Nakagawa, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) PN2021-82 |
A more reliable point-to-multipoint optical communication network is required in the mobile fronthaul of Beyond 5G, whic... [more] |
PN2021-82 pp.156-161 |
PN |
2022-03-02 15:55 |
Online |
Online |
Application of polarization-independent subtractive interference cancellation algorithm for same-band and bidirectional coherent communication Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) PN2021-84 |
When a single core and the same band bidirectional transmission is performed in a passive optical network (PON) for mobi... [more] |
PN2021-84 pp.169-173 |
OCS, CS (Joint) |
2022-01-14 11:00 |
Yamaguchi |
Conference room 204A・B at KDDI Ishin-hall (Primary: On-site, Secondary: Online) |
Study of the Amount of Mutual Information of Secure Polarization Multiplexed M-QAM Signal with Symbol Placement Retention Masking Method Keiji Shimada, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) OCS2021-36 |
In recent years, optical communication transceivers have been required to have high confidentiality for data. A shared k... [more] |
OCS2021-36 pp.16-21 |
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 |
ED, THz |
2021-12-20 13:00 |
Miyagi |
(Primary: On-site, Secondary: Online) |
[Invited Talk]
Recent Progress in Carrier Down-Conversion Devices Between Optical Communication and Beyond 5G Wireless Communication Akira Satou, Dai Nakajima, Kazuki Nishimura, Tomotaka Hosotani, Katsumi Iwatsuki, Tetsuya Suemitsu, Keisuke Kasai, Masato Yoshida, Taiichi Otsuji (Tohoku Univ.) ED2021-48 |
echnologies that seamlessly converges optical networks and wireless networks with small delay and low power consumption ... [more] |
ED2021-48 pp.1-5 |