Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
ED, THz |
2021-12-20 13:00 |
Miyagi |
(Miyagi, Online) (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 |
CS, OCS (Joint) |
2020-01-16 14:45 |
Oita |
Beppu Housensou Hotel (Oita Pref.) (Oita) |
[Invited Lecture]
Next Generation C-RAN Mobile Fronthaul Using On-line Bi-directional 256 QAM WDM Coherent Transmission Takashi Kan, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Katsumi Iwatsuki, Masataka Nakazawa (Tohoku Univ.) OCS2019-73 |
We have recently proposed a simple digital coherent transmission system with an injection locking technique for next gen... [more] |
OCS2019-73 pp.47-52 |
OCS, CS (Joint) |
2019-01-17 17:15 |
Okinawa |
Nobumoto Ohama Memorial Hall (Ishigaki Island) (Okinawa) |
[Invited Lecture]
160 Gbit/s, 256 QAM bidirectional coherent transmission for next generation mobile fronthaul Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Katsumi Iwatsuki, Masataka Nakazawa (Tohoku Univ.) CS2018-95 OCS2018-75 |
We have recently proposed a simple digital coherent transmission system with an injection locking technique for a next g... [more] |
CS2018-95 OCS2018-75 pp.47-52(CS), pp.41-46(OCS) |
CS, OCS (Joint) |
2018-01-29 15:45 |
Ehime |
Ehime University (Ehime) |
80 Gbit/s, 256 QAM digital coherent optical transmission with injection-locking for next generation mobile fronthaul Keisuke Kasai, Yixing Wang, Masato Yoshida, Toshihiko Hirooka, Katsumi Iwatsuki, Masataka Nakazawa (Tohoku Univ.) OCS2017-70 |
We propose a simple digital coherent transmission system with injection-locking for the next generation (5G and post 5G)... [more] |
OCS2017-70 pp.19-24 |
ED, THz |
2017-12-19 10:05 |
Miyagi |
RIEC, Tohoku Univ (Miyagi) |
Optical-to-MMW Carrier-Frequency Down-Conversion by InP-HEMT Yuya Omori, Tomotaka Hosotani, Taichi Otsuji, Katsumi Iwatsuki, Tetsuya Suemitsu (Tohoku Univ), Kaoru Higuma, Junichiro Ichikawa (Sumitomo Osaka Cement), Takahide Sakamoto, Naokatsu Yamamoto (NICT), Akira Satou (Tohoku Univ) ED2017-83 |
[more] |
ED2017-83 pp.41-45 |
CS, OCS (Joint) |
2016-01-22 09:50 |
Kagoshima |
Kagoshima University, Korimoto Campus, Inamori Auditorium (Kagoshima) |
Sub-THz Photonic Frequency Conversion Using Graphene and InP-Based Transistors for Future Fully Coherent Access Network Kenta Sugawara, Gen Tamamushi, Adrian Dobroiu, Tomohiro Yoshida, Tetsuya Suemitsu, Hirokazu Fukidome, Maki Suemitsu, Ryzhii Victor, Katsumi Iwatsuki (Tohoku Univ.), Shigeru Kuwano, Jun-ichi Kani, Jun Terada (NTT), Taiichi Otsuji (Tohoku Univ.) OCS2015-95 |
The feasibility of graphene-channel field effect transistors (G-FETs) and InP based high electron mobility transistors (... [more] |
OCS2015-95 pp.41-46 |
ED |
2014-12-22 14:10 |
Miyagi |
(Miyagi) |
Millimeterwave-photomixing by InGaAs channel HEMT and graphene channel FETs Tetsuya Kawasaki, Tomohiro Yoshida, Kenta Sugawara, Adrian Dobroiu, Takayuki Watanabe, Hiroki Sugiyama, Hiroyuki Wakou (Tohoku Univ.), Jun-ichi Kani, Jun Terada, Shigeru Kuwano (NTT), Hiroki Ago, Kenji Kawahara (Kyushu Univ.), Katsumi Iwatsuki, Tetsuya Suemitsu, Taiichi Otsuji (Tohoku Univ.) ED2014-100 |
We experimentally investigated the photomixing function in the millimeter wave range by using InGaAs channel high electr... [more] |
ED2014-100 pp.9-13 |
MWP |
2012-11-08 16:50 |
Kyoto |
Kyoto Institute of Technology (Kyoto) |
Adaptive Wireless Cell Configuration in RoF-DAS over WDM-PON Tatsuhiko Iwakuni (Osaka Univ.), Takeshi Higashino (NAIST), Katsutoshi Tsukamoto (OIT), Shozo Komaki (MJIIT), Katsumi Iwatsuki (Tohoku Univ.), Kenji Miyamoto, Takayoshi Tashiro, Youichi Fukada, Jun-ichi Kani, Naoto Yoshimoto (NTT) MWP2012-51 |
We have combined RoF technologies with broadband WDM-PON, and proposed RoF-DAS over WDM-PON which provides MIMO communic... [more] |
MWP2012-51 pp.27-30 |
EMT, PN, LQE, OPE, MWP, EST, IEE-EMT [detail] |
2012-01-27 11:15 |
Osaka |
Osaka Univ. Convention Center (Osaka) |
Investigation of Radio Cell Configuration in RoF-DAS over WDM-PON Kenji Miyamoto, Tatsuhiko Iwakuni, Takeshi Higashino, Katsutoshi Tsukamoto, Shozo Komaki (Osaka Univ.), Takayoshi Tashiro, Youichi Fukada, Jun-ichi Kani, Naoto Yoshimoto, Katsumi Iwatsuki (NTT) PN2011-70 OPE2011-186 LQE2011-172 EST2011-120 MWP2011-88 |
In order to enhance the universality for various types of wireless services and the flexibility for non-uniform traffic ... [more] |
PN2011-70 OPE2011-186 LQE2011-172 EST2011-120 MWP2011-88 pp.269-274 |
SIP, CAS, CS |
2007-03-05 11:40 |
Tottori |
Blancart Misasa (Tottori) (Tottori) |
Configuration of high-sensitive 10Gbit/s burst-mode optical receiver Takashi Nakanishi, Yasuhiko Nakanishi, Youichi Fukada, Ken-Ichi Suzuki, Katsumi Iwatsuki (NTT) CAS2006-83 SIP2006-184 CS2006-100 |
In this paper, to realize TDM-PON based next generation high-speed access systems, we proposed a configuration of a high... [more] |
CAS2006-83 SIP2006-184 CS2006-100 pp.33-38 |
CS |
2007-01-11 13:40 |
Okinawa |
Yonaguni (Okinawa) (Okinawa) |
Bidirectional optical amplifier with single-EDF configuration for burst signal transmission Yasuhiko Nakanishi, Takashi Nakanishi, Youichi Fukada, Ken-Ichi Suzuki, Katsumi Iwatsuki (NTT) CS2006-79 |
We proposed the bidirectional optical amplifier with single-EDF configuration using L-band with in order to improve the ... [more] |
CS2006-79 pp.53-57 |
CS |
2005-11-17 10:20 |
Hokkaido |
Yonokawa Prince Hotel (Hokkaido) |
Wide-area WDM-PON technologies Hiro Suzuki, Hirotaka Nakamura, Masamichi Fujiwara, Katsumi Iwatsuki (NTT) |
[more] |
CS2005-39 pp.13-18 |
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