Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
ED, MWPTHz |
2023-12-21 16:45 |
Miyagi |
RIEC, Tohoku Univ. (Primary: On-site, Secondary: Online) |
Demonstration of a secure wireless communication system based on XOR operation between two data in terahertz waves Takuya Yano, Ming Che, Hanwei Chen, Naoya Seiki, Takashi Shiramizu, Yuya Mikami (Kyushu Univ.), Yuta Ueda (NTT), Kazutoshi Kato (Kyushu Univ.) ED2023-56 MWPTHz2023-66 |
Future wireless communications will require high security as well as high capacity. We have proposed a wireless communic... [more] |
ED2023-56 MWPTHz2023-66 pp.16-19 |
ED, MWPTHz |
2023-12-21 17:35 |
Miyagi |
RIEC, Tohoku Univ. (Primary: On-site, Secondary: Online) |
Characterization of high-speed wavelength switching of wavelength tunable laser and its applicability to optical switches Ryo Matsumoto, Naoto Masutomi, Ryota Kaide, Yuya Mikami (Kyushu Univ.), Yuta Ueda (NTT), Kazutoshi Kato (Kyushu Univ.) ED2023-58 MWPTHz2023-68 |
With the rapid increase in communication traffic in recent years, high-speed optical switches are required for optical c... [more] |
ED2023-58 MWPTHz2023-68 pp.25-28 |
HIP |
2021-10-22 14:00 |
Online |
Online |
Dependence of Locus of Attention on Depth of Field under Retinal Illuminance Constancy Condition
-- Investigation Using Extended Depth of Field (EDoF) Lenses -- Genta Higashi, Yuichiro Orita, Shoko Hira, Masayuki Kashima (Kagoshima Univ.), Yasushi Miyajima, Kazutoshi Kato (ITOH Opt), Sakuichi Ohtsuka (ICT) HIP2021-45 |
By using extended depth-of-field (EDoF) lenses (eyeglasses), we became able to measure the relationship between depth-of... [more] |
HIP2021-45 pp.81-86 |
CQ, MIKA (Joint) |
2021-09-09 13:20 |
Online |
Online |
[Invited Talk]
Terahertz wave generation by photomixers and its application to communication technology Kazutoshi Kato (Kyushu Univ.) CQ2021-44 |
[more] |
CQ2021-44 pp.36-39 |
OPE, LQE |
2020-11-20 15:30 |
Online |
Online |
Feasibility confirmation of high-security wireless communication using high-directivity THz Waves
-- Realization of AND operation by homodyne detection and heterodyne detection -- Yusuke Kawai, Kenta Yamauchi, Kazutoshi Kato (Kyushu Univ.) OPE2020-55 LQE2020-35 |
We have been inventing a new encrypted methods to improve physical-layer security of wireless communication. As one of c... [more] |
OPE2020-55 LQE2020-35 pp.53-57 |
OPE, LQE |
2020-11-20 15:30 |
Online |
Online |
Sub-THz-Repetition Optical Waveform Measurement by Novel THz-wave Autocorrelator Ruo Yamamoto, Kazutoshi Kato (Kyushu Univ.) OPE2020-56 LQE2020-36 |
For observation of a high-repetition optical waveform, we had proposed a THz wave autocorrelator consisting of an optica... [more] |
OPE2020-56 LQE2020-36 pp.58-61 |
OPE, LQE |
2020-11-20 15:30 |
Online |
Online |
THz-Wave Power Multiplication by Parallel-Connection UTC-PDs Yuki Matsuo, Ming Che, Haruichi Kanaya, Kazutoshi Kato (Kyushu Univ.) OPE2020-57 LQE2020-37 |
[more] |
OPE2020-57 LQE2020-37 pp.62-65 |
OPE, LQE |
2020-11-20 15:30 |
Online |
Online |
Novel Terahertz-Wave Beam Steering Method by Photomixing with Chromatic Dispersion of Optical Fibers Takumi Saito, Kazutoshi Kato (Kyushu Univ.) OPE2020-59 LQE2020-39 |
We proposed a new beam steering method of terahertz wave generated by the photomixing using the chromatic dispersion of ... [more] |
OPE2020-59 LQE2020-39 pp.71-74 |
MWP |
2020-05-28 15:30 |
Online |
Online |
Fermi-level-managed Barrier Diode Receiver and its Application in 300-GHz-band Fumiya Ayano, Keita Toichi, Li Yi (Osaka Univ.), Hiroshi Ito (Kitasato Univ.), Kazutoshi Kato (Kyushu Univ.), Tadao Nagatsuma (Osaka Univ.) MWP2020-4 |
[more] |
MWP2020-4 pp.19-22 |
LQE, OPE, SIPH |
2018-12-06 17:10 |
Tokyo |
Keio University |
Terahertz Pulse Wave Generation with Photoelectric Conversion Ken Mitsueda, Kohei Ichiyama, Kazutoshi Kato (Kyushu Univ.) OPE2018-119 LQE2018-129 SIPH2018-35 |
We have studied the use of pulse waves with a high-repetition frequency in the terahertz region that can achieve the sam... [more] |
OPE2018-119 LQE2018-129 SIPH2018-35 pp.109-113 |
LQE, OPE, SIPH |
2018-12-06 17:10 |
Tokyo |
Keio University |
Nonlinear Model for High-speed Wavelength Switching of Tunable Distributed Amplification (TDA-) DFB Laser Hiroki Fukuda, Shunta Kono, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) OPE2018-120 LQE2018-130 SIPH2018-36 |
Optical burst systems and optical packet systems require optical sources capable of high-speed wavelength switching. Tun... [more] |
OPE2018-120 LQE2018-130 SIPH2018-36 pp.115-119 |
LQE, OPE, SIPH |
2018-12-06 17:10 |
Tokyo |
Keio University |
Wavelength Switching Method of DFB Laser for High-speed and Reliable Optical Switch Shunta Kono, Hiroki Fukuda, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) OPE2018-121 LQE2018-131 SIPH2018-37 |
[more] |
OPE2018-121 LQE2018-131 SIPH2018-37 pp.121-124 |
ED, THz |
2017-12-18 13:00 |
Miyagi |
RIEC, Tohoku Univ |
[Invited Talk]
Semiconductor Photonics Device Technology for Coherent Terahertz-wave Generation Kazutoshi Kato (Kyushu Univ.) ED2017-72 |
The terahertz wave is expected to be a promising media for a large capacity wireless transmission system and a high-reso... [more] |
ED2017-72 pp.1-4 |
OPE |
2017-12-07 13:15 |
Okinawa |
|
[Poster Presentation]
Etalon-filter-based mode hop detection for wavelength tunable lasers Masataka Gohara, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) OPE2017-103 |
At the multi-electrode tunable laser diodes, mode hops appear when we sweep the wavelength with tuning currents. Therefo... [more] |
OPE2017-103 pp.75-78 |
OPE |
2017-12-07 13:15 |
Okinawa |
|
[Poster Presentation]
Prompt Stabilization of Optical Wavelength at Tunable Laser after Starting Oscillation Hiroki Fukuda, Kenta Yamaguchi, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) OPE2017-105 |
In the future, high-speed optical switch will be the key to the optical network. We study high-speed wavelength switchin... [more] |
OPE2017-105 pp.83-87 |
OPE |
2017-12-07 13:15 |
Okinawa |
|
[Poster Presentation]
High-Repetition-Frequency Terahertz-Wave-Pulse Generation Based on Photonic Technique Ken Mitsueda, Yusuke Yamanaka, Kazutoshi Kato (Kyushu Univ.) OPE2017-107 |
We have studied the use of pulse waves with a high-repetition frequency in the terahertz region that can achieve the sam... [more] |
OPE2017-107 pp.93-96 |
OPE |
2017-12-08 11:55 |
Okinawa |
|
600-GHz Coherent Terahertz Wave Combiner Yang Zhou, Goki Sakano, Yusuke Yamanaka (Kyushu Univ.), Hiroshi Ito (Kitasato Univ.), Tadao Ishibashi (NEL Techno), Kazutoshi Kato (Kyushu Univ.) OPE2017-115 |
For future high-speed wireless communication, the terahertz-wave transmission is attracting an attention. However, compa... [more] |
OPE2017-115 pp.131-134 |
OCS, OPE, LQE |
2017-10-26 15:45 |
Kumamoto |
Josaien, Sakuranobaba |
Demonstration of Optical-to-Wireless Media Conversion by Using Photomixing and Cross Gain Modulation Yusuke Yamanaka, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) OCS2017-46 OPE2017-78 LQE2017-51 |
We devised the seamless media conversion system from an optical network to a THz-wave network utilizing the photomixing ... [more] |
OCS2017-46 OPE2017-78 LQE2017-51 pp.53-56 |
MWP |
2016-11-14 16:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Proposal and demonstration of chromatic dispersion measurement at optical waveguide devices and application for controlling phase of THz wave Yusuke Yamanaka, Goki Sakano, Jun Haruki, Takeshi Kuboki, Kazutoshi Kato (Kyushu Univ.) MWP2016-52 |
Terahertz (THz) wave, whose frequency is raging from 100GHz to 10THz, is one of the candidates of the media for short-di... [more] |
MWP2016-52 pp.51-55 |
OPE |
2015-12-11 10:45 |
Ishikawa |
Shiinoki Cultural Complex |
High-speed, High-Accuracy Wavelength Switching at Wavelength Tunable Laser using Feedforward Control Yudai Tatsumoto, Ryoga Kimura (Kyushu Univ.), Makoto Shimokozono, Hiroyuki Ishii (NTT), Kazutoshi Kato (Kyushu Univ.) OPE2015-143 |
We present the method of the high-speed wavelength switching of the tunable distributed amplification (TDA-) DFB laser b... [more] |
OPE2015-143 pp.21-24 |