Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
OCS, CS (Joint) |
2024-01-12 09:30 |
Kagoshima |
|
Digital inverse multiplexing modelling-based pre-distortion for broadband signal generation with analog-multiplexed DACs Akira Kawai, Masanori Nakamura, Takayuki Kobayashi, Munehiko Nagatani, Hiroshi Yamazaki, Takeo Sasai, Fukutaro Hamaoka, Yutaka Miyamoto (NTT) OCS2023-62 |
(Advance abstract in Japanese is available) [more] |
OCS2023-62 pp.26-30 |
OCS, OFT, IEE-CMN, ITE-BCT (Joint) [detail] |
2023-11-10 13:25 |
Kyoto |
(Primary: On-site, Secondary: Online) |
Gaussian-noise-model-based SNR Estimation in 15.2-THz Bandwidth 400-km Inline-amplified Transmission Kosuke Kimura, Takayuki Kobayashi, Shimpei Shimpei, Masanori Nakamura, Takushi Kazama, Masashi Abe, Takeshi Umeki, Akira Kawai, Fukutaro Hamaoka, Yutaka Miyamoto (NTT) OCS2023-46 |
We demonstrated that mean errors of the SNRs estimated with GN model accounting for SRS were less than 1 dB in 15.2-THz ... [more] |
OCS2023-46 pp.16-19 |
OCS, LQE, OPE |
2023-05-26 16:30 |
Online |
Online |
[Special Invited Talk]
14.1-THz Wide-band WDM Transmission using PPLN-based Optical Parametric Inline Amplifier Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takushi Kazama, Masashi Abe, Takeshi Umeki, Akira kawai, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Yutaka Miyamoto (NTT) OCS2023-8 OPE2023-8 LQE2023-8 |
As digital coherent technologies have matured, a spectral efficiency achieved by the advanced modulation format of optic... [more] |
OCS2023-8 OPE2023-8 LQE2023-8 pp.32-35 |
PN |
2023-03-02 09:30 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Spatial division multiplexed amplification by Cladding pumped EDFA Shigehiro Takasaka (Furukawa Electric), Kohki Shibahara, Takayuki Kobayashi, (NTT), Koichi Maeda, Ryuichi Sugizaki (Furukawa Electric), Yutaka Miyamoto (NTT) PN2022-52 |
The use of multicore fiber is being considered to expand the transmission capacity of a single optical fiber. When coupl... [more] |
PN2022-52 pp.52-55 |
OCS, CS (Joint) |
2023-01-13 16:00 |
Fukuoka |
CANAL CITY HAKATA (Primary: On-site, Secondary: Online) |
Precise Signal Demodulation in Dynamic Environments Using Partially Frozen MIMO Adaptive Equalizers Akira Kawai, Masanori Nakamura, Minami Takahashi, Takayuki Kobayashi, Yutaka Miyamoto (NTT) OCS2022-69 |
For over-1 Tb/s/λ-class transceivers, it is important to improve the ability to accurately compensate for IQ impairments... [more] |
OCS2022-69 pp.51-55 |
PN |
2022-11-08 11:50 |
Kochi |
(Primary: On-site, Secondary: Online) |
Proposal of a method for acquiring optical signal transmission characteristics using an all-optical inter-band wavelength converter suitable for All-Photonics Network Haruka Minami, Kenta Hirose, Takafumi Fukatani, Masahiro Nakagawa, Takeshi Seki, Shimpei Shimizu, Takayuki Kobayashi, Takushi Kazama, Koji Enbutsu, Kei Watanabe, Takeshi Umeki, Takashi Miyamura (NTT) PN2022-30 |
All-Photonics Network (APN) aims at a large-capacity, low-latency, and low-energy-consumption network infrastructure by ... [more] |
PN2022-30 pp.48-52 |
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 |
OFT, OCS, IEE-CMN, ITE-BCT [detail] |
2021-11-18 13:45 |
Online |
Online |
[Invited Talk]
High-capacity and Long-haul WDM Transmission using PPLN-based Optical Parametric Inline Amplifier Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takushi Kazama, Takeshi Umeki, Ryoichi Kasahara, Fukutaro Hamaoka, Yutaka Miyamoto (NTT) OCS2021-29 |
Expansion of the optical band used for wavelength division multiplexing (WDM) is a key to increasing the capacity of opt... [more] |
OCS2021-29 pp.5-8 |
PN |
2021-03-01 14:30 |
Online |
Online |
[Invited Lecture]
Wide-band WDM Inline-amplified Transmission by Optical Parametric Amplifier using PPLN Waveguides Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takeshi Umeki, Takushi Kazama, RYoichi Kasahara, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Hideyuki Nosaka, Yutaka Miyamoto (NTT) PN2020-44 |
To increase the capacity of optical transmission systems, it is important to improve a spectral efficiency by utilizing ... [more] |
PN2020-44 pp.15-19 |
OPE, OCS, LQE |
2020-10-23 10:35 |
Online |
Online |
[Invited Talk]
Wide-band WDM Inline-amplified Transmission with PPLN-based Optical Parametric Amplifier Takayuki Kobayashi, Shimpei Shimizu, Masanori Nakamura, Takeshi Umeki, Takushi Kazama, Ryoichi Kasahara, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Hideyuki Nosaka, Yutaka Miyamoto (NTT) OCS2020-11 OPE2020-34 LQE2020-14 |
In optical transmission systems, the extension of the optical-band used for wavelength division multiplexing is a promis... [more] |
OCS2020-11 OPE2020-34 LQE2020-14 pp.17-20 |
ET |
2020-10-17 15:10 |
Online |
Online |
Verification of Information Literacy Education Using Item Response Theory Takaaki Ohkawauchi, Takayuki Kobayashi, Busujima Yuji, Eriko Tanaka (Nihon Univ.) ET2020-26 |
Continuous improvement activities of lectures are required in university education. However, there are few discussions o... [more] |
ET2020-26 pp.24-27 |
LQE, OPE, CPM, EMD, R |
2019-08-22 14:15 |
Miyagi |
|
[Invited Talk]
Ultra boradband digital coherent technologies for 1Tb/s channel rate and beyond Takayuki Kobayashi (NTT) R2019-23 EMD2019-21 CPM2019-22 OPE2019-50 LQE2019-28 |
Research and development of optical transmission systems with over-1-Tb/s capacity per wavelength are underway to effici... [more] |
R2019-23 EMD2019-21 CPM2019-22 OPE2019-50 LQE2019-28 pp.21-24 |
LQE, OCS, OPE |
2019-05-13 16:25 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
[Special Invited Talk]
35-Tb/s C-band Transmission over 800 km using ultra-high-speed signal generation and detection technologies for over-1-Tb/s net rate channel.
-- Review of OFC2019 Post-deadline Papers -- Takayuki Kobayashi (NTT) OCS2019-7 OPE2019-7 LQE2019-7 |
(Advance abstract in Japanese is available) [more] |
OCS2019-7 OPE2019-7 LQE2019-7 pp.27-28 |
OCS, OPE, LQE |
2018-11-12 13:35 |
Tokyo |
Kikai-Shinko-Kaikan Bldg (Tokyo) |
[Invited Talk]
Report on ECOC2018
-- Core Transmission -- Masanori Nakamura, Takayuki Kobayashi (NTT) OCS2018-59 OPE2018-88 LQE2018-77 |
ECOC (European Conference on Optical Communication) 2018 was held in Italy and Rome from 2018/9/23 to 2018/9/27. This co... [more] |
OCS2018-59 OPE2018-88 LQE2018-77 pp.1-5 |
OCS, OPE |
2017-05-12 15:55 |
Tokyo |
Kikai-Shinko-Kaikan Bldg(Tokyo) |
[Special Invited Talk]
1-Pb/s Dense Space Division Multiplexing (DSDM) Transmission Technology Using 100Gbaud-class 16QAM Channels
-- Review of OFC2017 Postdeadline Paper Presentation -- Takayuki Kobayashi, Masanori Nakamura, Fukutaro Hamaoka, Kohki Shibahara, Takayuki Mizuno, Akihide Sano, Hiroto Kawakami, Akira Isoda, Munehiko Nagatani, Hiroshi Yamazaki, Yutaka Miyamoto (NTT), Yoshimichi Amma, Yusuke Sasaki, Katsuhiro Takenaga, Kazuhiko Aikawa (Fujikura) OCS2017-7 OPE2017-7 |
This technical repot reviews the presentation of the OFC2017 Postdeadline.Paper Th5B.1. [more] |
OCS2017-7 OPE2017-7 pp.25-27 |
OCS, CS (Joint) |
2017-01-19 13:55 |
Fukuoka |
Kyushu Sangyo University |
Evaluation of TDM-PON System Aggregating TDD-based Mobile Fronthaul and Secondary Services Daisuke Hisano, Tatsuya Shimada, Hiroshi Ou, Takayuki Kobayashi, Yu Nakayama, Jun Terada, Akihiro Otaka (NTT) CS2016-66 |
(Advance abstract in Japanese is available) [more] |
CS2016-66 pp.13-18 |
CS |
2016-07-07 09:55 |
Okinawa |
Miyakojima Hirara-kou terminal bldg. |
Comparison and Experimental Evaluation of Generation Method of Management and Control Channels for WDM-PON System Accommodating Future Mobile Network Kazuaki Honda, Takayuki Kobayashi, Susumu Nishihara, Tatsuya Shimada, Jun Terada, Akihiro Otaka (NTT) CS2016-11 |
To address the issue of the mobile data traffic increase, many small cells will densely be deployed in the future mobile... [more] |
CS2016-11 pp.7-12 |
RCS |
2015-10-02 14:35 |
Kanagawa |
YRP (Yokosuka) |
[Invited Lecture]
Optical access technologies for accommodating highly densified small cells toward 5G mobile network Tatsuya Shimada, Shigeru Kuwano, Takayuki Kobayashi, Hiroshi Ou, Kenji Miyamoto, Kaduaki Honda, Jun Terada, Akihiro Otaka (NTT) RCS2015-185 |
[more] |
RCS2015-185 pp.147-150 |
OCS, PN, NS (Joint) |
2013-06-20 16:30 |
Fukushima |
College of Engineering, Nihon University |
Analysis of the effect of phase noise mitigation using pilot tone Mitsuteru Yoshida, Etsushi Yamazaki, Takayuki Kobayashi, Akihide Sano, Yutaka Miyamoto (NTT) OCS2013-13 |
Utilization of high-order quadrature amplitude modulation (QAM) formats is very attractive to realize for 400Gbps per-ch... [more] |
OCS2013-13 pp.17-21 |
OCS, LQE, OPE |
2011-10-28 10:40 |
Kochi |
Kochi University of Technology |
Bit Rate Free Auto Bias Control technique for Optical 16-QAM Transmitter with Asymmetric Bias Dithering Hiroto Kawakami, Takayuki Kobayashi, Eiji Yoshida, Yutaka Miyamoto (NTT) OCS2011-83 OPE2011-121 LQE2011-84 |
Bit rate free Auto Bias Control (ABC) technique for Quadrature Amplitude Modulation (QAM) transmitter is demonstrated. 1... [more] |
OCS2011-83 OPE2011-121 LQE2011-84 pp.149-152 |
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