| IEICE Technical Committee Submission System Conference Schedule |
Online Proceedings [Sign in] Tech. Rep. Archives |
All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OCS, CS (Joint) |
2025-01-16 13:30 |
Fukuoka | リファレンス駅東ビル貸会議室 (Fukuoka) | [Invited Lecture]
100 Gbit/s-class fully coherent mobile fronthaul transmission towards next-generation radio access networks Keisuke Kasai, Tomoki Joichi, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.)  CS2024-79 |
In the 6th generation mobile communication system (6G), large capacity, low power consumption optical mobile fronthaul p... [more] | CS2024-79 pp.5-8 |
| OCS, CS (Joint) |
2024-01-12 09:55 |
Kagoshima | (Kagoshima) | Fully coherent optical and wireless transmission in the 28 GHz band by using an injection-locked carrier frequency converter Koichi Shirahata, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.), Uichiro Azuma, Toshiyuki Kobayashi (Nihon Dengyo Kosaku) OCS2023-63 |
As an optical mobile fronthaul with low latency and low power consumption, we have proposed a fully coherent optical and... [more] | OCS2023-63 pp.31-36 |
| AP | 2023-02-17 14:55 |
Miyagi | Tohoku University, Aobayama Campus (Miyagi, Online) (Primary: On-site, Secondary: Online) |
Coherently-linked optical and wireless transmission by using a 28 GHz band microstrip antenna Keisuke Kasai, Taisei Sato, Koichi Shirahata, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ), Uichiro Azuma, Toshiyuki Kobayashi (Dengyo) AP2022-229 |
As an economical, large-capacity mobile fronthaul, we have proposed coherently-linked optical and wireless transmission ... [more] | AP2022-229 pp.178-183 |
| OCS, CS (Joint) |
2022-01-13 15:55 |
Yamaguchi | Conference room 204A・B at KDDI Ishin-hall (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Performance comparison of injection-locked carrier frequency conversion and self-heterodyne detection methods in coherently-linked optical and wireless transmission Taisei Sato, Koichi Shirahata, Keisuke Kasai, Toshihiko Hirooka, Masato Yoshida, Masataka Nakazawa (Tohoku Univ.) OCS2021-34 |
We have demonstrated a coherently-linked 64 Gbit/s, 256 QAM transmission in the 61 GHz IF band over a 10 km single-mode ... [more] | OCS2021-34 pp.7-10 |
| 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 |
| OFT | 2021-05-14 13:45 |
Online | Online (Online) | BER performance improvement of ultrahigh-speed coherent Nyquist pulse transmission using low-nonlinearity, dispersion-compensated transmission line with chirped FBG and LCoS Kosuke Kimura, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OFT2021-7 |
We demonstrate a low-nonlinearity, dispersion-compensated transmission line composed of a chirped FBG and an LCoS device... [more] | OFT2021-7 pp.27-30 |
| SR | 2021-01-25 11:00 |
Online | Online (Online) | [Invited Talk]
Toward optical and wireless integrated full-coherent access network Toshihiko Hirooka, Keisuke Kasai, Masato Yoshida, Masataka Nakazawa (Tohoku Univ.) SR2020-49 |
We have proposed a coherently-linked optical and wireless transmission system toward a large-capacity radio access netwo... [more] | SR2020-49 pp.15-20 |
| OCS, CS (Joint) |
2021-01-14 14:55 |
Online | Online (Online) | Study on chromatic dispersion dependence of GAWBS noise Kozo Sato, Takashi Kan, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OCS2020-30 |
We have proposed the guided acoustic-wave Brillouin scattering (GAWBS) phase noise compensation method with a pilot tone... [more] | OCS2020-30 pp.18-23 |
| OCS, OFT, LSJ (Joint) [detail] |
2020-08-28 15:15 |
Online | Online (Online) | Experimental and theoretical analyses of GAWBS phase noise in multi-core fiber for digital coherent transmission Masato Yoshida, Naoya Takefushi, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OCS2020-7 |
(Advance abstract in Japanese is available) [more] | OCS2020-7 pp.15-20 |
| RCS, SR, SRW (Joint) |
2020-03-04 09:00 |
Tokyo | Tokyo Institute of Technology (Tokyo) (Cancelled but technical report was issued) |
R&D of Technology for High Reliability Management of Advanced 5G Network to Various Requirements of Communication Services Takahide Murakami, Hiroyuki Shinbo, Yu Tsukamoto, Shinobu Nanba, Yoji Kishi (KDDI Research), Morihiko Tamai, Hiroyuki Yokoyama (ATR), Takanori Hara, Koji Ishibashi (The University of Electro-Communications), Kensuke Tsuda, Yoshimi Fujii (Kozo Keikaku Engineering Inc.), Fumiyuki Adachi, Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yuta Seki, Takayuki Sotoyama (Panasonic) RCS2019-320 |
As the 5th generation mobile communication system is widespread approximately 2025, more variety of communication qualit... [more] | RCS2019-320 pp.1-6 |
| 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, PN, NS (Joint) |
2019-06-20 11:00 |
Iwate | MALIOS（Morioka） (Iwate) | GAWBS noise characteristics in digital coherent transmission in various optical fibers Naoya Takefushi, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OCS2019-11 |
(Advance abstract in Japanese is available) [more] | OCS2019-11 pp.5-10 |
| OCS, PN, NS (Joint) |
2019-06-21 16:00 |
Iwate | MALIOS（Morioka） (Iwate) | 50.4 Tbit/s, L-band 480 ch-WDM, 128 QAM-160 km digital coherent optical transmission using an injection-locked homodyne receiver Takashi Kan, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OCS2019-19 |
Injection locking method enables us to realize precise optical carrier-phase synchronization between transmitted data an... [more] | OCS2019-19 pp.47-50 |
| 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) |
| OCS, CS (Joint) |
2019-01-17 17:40 |
Okinawa | Nobumoto Ohama Memorial Hall (Ishigaki Island) (Okinawa) | [Invited Lecture]
Dual-polarization real-time 256～512 QAM digital coherent transmission Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) CS2018-96 OCS2018-76 |
(Advance abstract in Japanese is available) [more] | CS2018-96 OCS2018-76 pp.53-58(CS), pp.47-52(OCS) |
| LQE, OPE, SIPH | 2018-12-06 17:10 |
Tokyo | Keio University (Tokyo) | Full C+L-Band, Mode Hop Free Wavelength Tunable LD with a Linewidth of Less than 8 kHz Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yasunori Tomomatsu, Takashi Endo (Koshin Kogaku) OPE2018-109 LQE2018-119 SIPH2018-25 |
We present a full 90-nm C+L-band (1530-1620 nm) mode hop free wavelength tunable LD in which we developed a new waveleng... [more] | OPE2018-109 LQE2018-119 SIPH2018-25 pp.59-62 |
| OFT | 2018-10-11 14:00 |
Miyagi | Touhoku Univ. (Miyagi) | [Poster Presentation]
Single-channel 7.68 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 9.7 bit/s/Hz Kosuke Kimura, Nitta Junpei, Masato Yoshida, Keisuke Kasai, Toshiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OFT2018-27 |
We achieved a record capacity of 7.68 Tbit/s in a single channel coherent Nyquist pulse transmission over 150 km with a ... [more] | OFT2018-27 pp.67-71 |
| OFT | 2018-10-11 14:00 |
Miyagi | Touhoku Univ. (Miyagi) | [Poster Presentation]
12 bit/s/Hz, 58.2 Tbit/s, 256 QAM-160 km C-band WDM Transmission Using an Injection Locking Technique Takashi Kan, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OFT2018-28 |
Injection locking can realize precise carrier-phase synchronization between the transmitted data and a local oscillator ... [more] | OFT2018-28 pp.73-77 |
| OFT | 2018-10-11 14:00 |
Miyagi | Touhoku Univ. (Miyagi) | [Poster Presentation]
Observation of GAWBS noise and development of its compensation technique in digital coherent optical transmission Naoya Takefushi, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OFT2018-29 |
Guided acoustic-wave Brillouin scattering (GAWBS) noise is an optical phase fluctuation that occurs coherently with ther... [more] | OFT2018-29 pp.79-83 |
| EMD, LQE, OPE, CPM, R | 2018-08-24 13:40 |
Hokkaido | Otaru Camber of Commerce & Industry (Hokkaido) | Oscillation chracteristics of a narrow linewidth DFB LD array with an optical feedback method Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.) R2018-31 EMD2018-34 CPM2018-34 OPE2018-61 LQE2018-50 |
We describe a 1.5 m, narrow linewidth, high output power wavelength tunable LD with a self-optical feedback circuit. By... [more] | R2018-31 EMD2018-34 CPM2018-34 OPE2018-61 LQE2018-50 pp.73-78 |
[Return to Top Page]