J-GLOBAL         Last updated: Jun 7, 2019 at 02:47
Waseda University
Faculty of Science and Engineering School of Fundamental Science and Engineering
Job title
Ph. D. in Engineering(Kyoto University)
Research funding number

Research Areas


Academic & Professional Experience

Jan 1994
Sep 1995
Production Engineering Laboratory, Matsushita Electric Industrial
Jul 1997
Mar 1998
Venture Business Laboratory, Kyoto University
Apr 1998
Communications Research Laboratory (now National Institute of Information and Communications Technology)
Dec 2003
May 2004
Visiting Scholar, Electrical and Computer Engineering department, University of California at San Diego
Apr 2015
Department of Electrical and Fundamental Systems, School of Fundamental Scienece and Engineering, Faculty of Science and Engineering, Waseda University


Apr 1988
Mar 1992
Department of Electronics, Faculty of Engineering, Kyoto University
Apr 1992
Mar 1994
Department of Electronics, Graduate School of Engineering, Kyoto University
Oct 1995
Jul 1997
Department of Electronics and Communication, Graduate School of Engineering, Kyoto University

Awards & Honors

Young Scientist Award URSI-GA99

Published Papers

Umezawa, Toshimasa; Jitsuno, Kunihisa; Dat, Pham Tien; Kashima, Kenichi; Kanno, Atsushi; Yamamoto, Naokatsu; Kawanishi, Tetsuya; Kawanishi, Tetsuya
IEEE Journal of Selected Topics in Quantum Electronics   24(2)    Mar 2018
© 1995-2012 IEEE. We report on the use of 30 and 100 GHz integrated millimeter-wave photoreceivers in high data rate photonic wireless communication. The role of the bandwidth of a narrow-band photoreceiver in increasing the data rate of wireless ...
Umezawa, Toshimasa; Dat, Pham Tien; Kashima, Kenichi; Kanno, Atsushi; Yamamoto, Naokatsu; Kawanishi, Tetsuya; Kawanishi, Tetsuya
Journal of Lightwave Technology   36(2) 617-623   Jan 2018
© 1983-2012 IEEE. We designed and fabricated a 100-GHz range integrated photoreceiver with zero-bias operational uni-traveling-carrier photodiode and pseudomorphic high electron mobility transistor amplifier, which performed the roles of photonic ...
Kanno, Atsushi; Dat, Pham Tien; Yamamoto, Naokatsu; Kawanishi, Tetsuya; Kawanishi, Tetsuya
Journal of Lightwave Technology   36(2) 533-540   Jan 2018
© 2017 IEEE. We discuss and propose millimeter-wave linear cell systems for signal distribution on railway radiocommunication systems between train and trackside, and a foreign object debris detection system for airport runways using the radio-ove...
Yamaguchi, Yuya; Kanno, Atsushi; Kawanishi, Tetsuya; Kawanishi, Tetsuya; Izutsu, Masayuki; Nakajima, Hirochika
Journal of Lightwave Technology   35(21) 4781-4788   Nov 2017
© 1983-2012 IEEE. We analyzed the complex transfer function and modulation spectrum of the Mach-Zehnder (MZ) modulator with optical power and phase change imbalances. From the calculations, we found that the characteristic operation can be obtaine...
Umezawa, Toshimasa; Hase, Eiichi; Kanno, Atsushi; Matsumoto, Atsushi; Akahane, Kouichi; Yamamoto, Naokatsu; Kawanishi, Tetsuya; Kawanishi, Tetsuya
IEEE MTT-S International Microwave Symposium Digest   1865-1868   Oct 2017
© 2017 IEEE. We present a 100-GHz integrated photoreceiver using an optical-to-radio converter and an enhancement-mode PHEMT amplifier driven by all optical resources without an external electric power supply. Technology for the simultaneous gener...


Brewster's scattering angle and quasi-anomalous scattering in random scattering from dieleatric interfaces
JOSA 16 339-342   
Conjugate memory effect of random Acattered waves
JOSA 16 1342-1349   
Waves in Random media 7 351-384   
Two beam collection mode photon scanning tunneling microscope
Waves in Random media 7 351-384   

Research Grants & Projects

Optical Discrete Time-Frequency Transform for Ultrafast Communications
Project Year: Apr 2018 - Mar 2023
Instantaneous Frequency Measurement by asymmetric double side-band optical modulation
Project Year: Apr 2018 - Mar 2021
Two-mode quantum dot laser for terahertz generation
Project Year: Apr 2015 - Mar 2018
In this study, we fabricated two-mode laser using semiconductor InAs quantum dots as the gain medium in the external cavity configuration. When the QDs were used for gain media, the mode hopping could be suppressed and stable two-mode lasing was o...
Development of millimeter-wave/THz-wave generation devices utilizing a high-Q resonator and nonlinear-optical difference frequency generation
Project Year: Apr 2012 - Mar 2014
New millimeter-wave/terahertz-wave signal generation devices utilizing nonlinear optical difference frequency generation (DFG) in a rectangular waveguide resonator were studied in detail. By using detailed analyses based-on the coupled-mode theor...
Study on the resonant type optical modulator array with antennas for a conversion of milli-wave to optical wave
A resonant type optical modulator array with antennas can be an effective converter from micro/millimeter-wave to light wave for the uplink of the radio on fiber system. For realizing this novel device, we have tried the following three themes.1.R...