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Research Output 1989 2019

2019

600 GHz wideband planar array antenna on a chip

Kanaya, H., Tsugami, K., Zhou, Y. & Kato, K., Jan 1 2019, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII. Sadwick, L. P. & Yang, T. (eds.). SPIE, 109171P. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10917).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconducting indium phosphide
Optical fiber fabrication
III-V Semiconductors
Indium phosphide
Terahertz waves

Theoretical analysis of long-haul systems adopting mode-division multiplexing

Elfiqi, A. E., Ali, A. A. I., El-Sahn, Z. A., Kato, K. & Shalaby, H. M. H., Aug 15 2019, In : Optics Communications. 445, p. 10-18 9 p.

Research output: Contribution to journalArticle

Group delay
multiplexing
Multiplexing
division
Fibers
2018

600-GHz-band Waveguide-output Uni-traveling-carrier Photodiodes and Their Applications to Wireless Communication

Nagatsuma, T., Kurokawa, T., Sonoda, M., Ishibashi, T., Shimizu, M. & Kato, K., Aug 17 2018, Proceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018. Institute of Electrical and Electronics Engineers Inc., p. 1180-1183 4 p. 8439226. (IEEE MTT-S International Microwave Symposium Digest; vol. 2018-June).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

wireless communication
Photodiodes
photodiodes
Waveguides
waveguides

600-GHz-wave beam steering by terahertz-wave combiner

Zhou, Y., Sakano, G., Yamanaka, Y., Ito, H., Ishibashi, T. & Kato, K., Jan 1 2018, Optical Fiber Communication Conference, OFC 2018. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F84-OFC 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Terahertz waves
Wave power
Phase control
Phase shift
Tuning

600-GHz-wave beam steering by terahertz-wave combiner

Zhou, Y., Sakano, G., Yamanaka, Y., Ito, H., Ishibashi, T. & Kato, K., Jun 13 2018, 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 1-3 3 p. (2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Terahertz waves
Wave power
Phase control
phase control
beam steering
1 Citation (Scopus)

Development of 4x4 phased array antenna on chip for 300GHz band application

Kanaya, H., Tsugami, K., Sakano, G., Eu, G. C. & Kato, K., Jan 1 2018, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI. Sadwick, L. P. & Yang, T. (eds.). SPIE, 1053114. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10531).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phased Array
Antenna phased arrays
phased arrays
Antenna
Chip
feedforward control
distributed feedback lasers
feedback control
stabilization
high speed
feedforward control
Feedforward control
Distributed feedback lasers
distributed feedback lasers
feedback control

Linearizer for wavelength sweep at tunable DBR-LD and linearity evaluation of sweep

Gohara, M., Kimura, R., Yamaguchi, K., Kuboki, T. & Kato, K., Jan 2 2018, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. p. 298-299 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

linearity
DBR lasers
Germanium
Wavelength
evaluation

Novel measurement method for optical pulse width at high-repetition frequency

Mitsueda, K., Yamanaka, Y. & Kato, K., Jan 2 2018, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. p. 52-53 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser pulses
repetition
pulse duration
Interferometers
interferometers
1 Citation (Scopus)

Over 300 GHz bandwidth UTC-PD module with 600 GHz band rectangular-waveguide output

Kurokawa, T., Ishibashi, T., Shimizu, M., Kato, K. & Nagatsuma, T., May 31 2018, In : Electronics Letters. 54, 11, p. 705-706 2 p.

Research output: Contribution to journalArticle

Rectangular waveguides
Photodiodes
Bandwidth
Waveguide couplers
Waveguides

Proposal of cost-efficient and low-complexity platform for software defined visible light communication

Che, M., Kuboki, T. & Kato, K., Jan 2 2018, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-January. p. 330-331 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

optical communication
proposals
platforms
bandwidth
costs

注入電流と温度の連携制御によるDFBレーザの波長安定化法の提案

Kono, S., Fukuda, H., Yamaguchi, K., Kuboki, T. & Kato, K., Mar 2018, In : 電子情報通信学会総合大会講演論文集.

Research output: Contribution to journalArticle

2017

4 × 4 arrayed THz-wave combiner composed of UTC-PDs and slot antennas

Sakano, G., Haruki, J., Tsugami, K., Kanaya, H. & Kato, K., Jan 1 2017, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. OSA - The Optical Society, s2348. (Optics InfoBase Conference Papers; vol. Part F122-CLEOPR 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Slot antennas

4 × 4 Arrayed THz-wave combiner composed of UTC-PDs and slot antennas

Sakano, G., Haruki, J., Tsugami, K., Kanaya, H. & Kato, K., Nov 22 2017, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-January. p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

power gain
slot antennas
Slot antennas
linear arrays
antennas
3 Citations (Scopus)

4x4 planar array antenna on indium phosphide substrate for 0.3-THz band application

Kanaya, H., Koga, M., Tsugami, K., Eu, G. C. & Kato, K., Jan 1 2017, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications X 2017. Yang, T. & Sadwick, L. P. (eds.). SPIE, 101031N. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 10103).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Indium phosphide
indium phosphides
Antenna Arrays
antenna arrays
Antenna arrays
1 Citation (Scopus)

An Accurate and Robust In-phase/Quadrature Skew Measurement for Coherent Optical Transmitter by Image Spectrum Analyzing

Chen, H., Su, X., Tao, Z., Oyama, T., Nakashima, H., Hoshida, T. & Kato, K., Sep 21 2017, 43rd European Conference on Optical Communication, ECOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 1-3 3 p. (European Conference on Optical Communication, ECOC; vol. 2017-September).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Modulators
Mach number
Experiments
Optical transmitters

Demonstration of novel media conversion method from optical to THz-wave networks

Kim, Y., Yamanaka, Y. & Kato, K., Jan 1 2017, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. OSA - The Optical Society, s2344. (Optics InfoBase Conference Papers; vol. Part F122-CLEOPR 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Demonstrations
Wavelength
Optical communication
Modulation

Demonstration of novel media conversion method from optical to THz-wave networks

Kim, Y., Yamanaka, Y. & Kato, K., Nov 22 2017, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Institute of Electrical and Electronics Engineers Inc., p. 1-2 2 p. (2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017; vol. 2017-January).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Demonstrations
Wavelength
Optical communication
wavelengths
optical communication
1 Citation (Scopus)

Fast wavelength stabilization of tunable laser after starting laser oscillation

Fukuda, H., Yamaguchi, K., Kuboki, T. & Kato, K., Nov 19 2017, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-November. p. 290-291 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser tuning
tunable lasers
Stabilization
stabilization
Wavelength

Impact of linear mode-coupling on nonlinear performance of long-haul strong-coupled multicore fibers transmission

El-Fiqi, A. E., Shalaby, H. M. H. & Kato, K., Jan 23 2017, 2016 IEEE Photonics Conference, IPC 2016. Institute of Electrical and Electronics Engineers Inc., p. 530-531 2 p. 7831215. (2016 IEEE Photonics Conference, IPC 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

coupled modes
fibers
Fibers
random noise
nonlinearity

Optical-to-wireless media conversion by utilizing cross gain modulation at semiconductor optical amplifier

Yamanaka, Y., Kim, Y., Kuboki, T. & Kato, K., Nov 19 2017, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 42-43 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconductor optical amplifiers
Service oriented architecture (SOA)
light amplifiers
Data communication systems
Modulation

Proposal of THz phase control system utilizing chromatic dispersion at optical device and its feasibility demonstration

Yamanaka, Y., Kuboki, T. & Kato, K., Nov 17 2017, 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017. Institute of Electrical and Electronics Engineers Inc., p. 1-2 2 p. (2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017; vol. 2017-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chromatic dispersion
Phase control
Optical devices
Demonstrations
Control systems

Proposal of THz Phase Control System Utilizing Chromatic Dispersion at Optical Device and Its Feasibility Demonstration

Yamanaka, Y., Kuboki, T. & Kato, K., Aug 2017, CLEO-PR/OECC/PGC2017.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Terahertz wave beam steering by optical phase control

Zhou, Y., Sakano, G., Tsugami, K., Kanaya, H. & Kato, K., Nov 19 2017, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 124-125 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Terahertz waves
Phase control
phase control
beam steering
Demonstrations

THz-wave phase shift measurement by THz-wave interferometer

Yamanaka, Y., Sakano, G., Haruki, J. & Kato, K., Jun 22 2017, In : Electronics Letters. 53, 13, p. 868-869 2 p.

Research output: Contribution to journalArticle

Terahertz waves
Phase shift
Interferometers
Chromatic dispersion
Phase shifters

リニアライザによるDBRレーザの波長掃引線形化とその評価

Gohara, M., Kimura, R., Yamaguchi, K., Kuboki, T. & Kato, K., Sep 2017, In : 電子情報通信学会ソサイエティ大会講演論文集.

Research output: Contribution to journalArticle

波長可変レーザにおける発振直後の光波長高速安定化 (光エレクトロニクス)

福田浩規, 山口健太, 久保木猛 & 加藤和利, Dec 7 2017, In : IEICE technical report. 117, 339, p. 83-87 5 p.

Research output: Contribution to journalArticle

波長可変レーザ発振直後における高速波長安定化

Fukuda, H., Yamaguchi, K., Kuboki, T. & Kato, K., Sep 2017, In : 電子情報通信学会ソサイエティ大会講演論文集.

Research output: Contribution to journalArticle

非線形電圧電流特性を応用したレーザ波長掃引の線形性向上の検討

Kuboki, T., Gohara, M., Kimura, R., Yamaguchi, K. & Kato, K., Mar 2017, In : 応用物理学会秋季学術大会.

Research output: Contribution to journalArticle

2016
4 Citations (Scopus)

300 GHz one-sided directional slot array antenna on indium phosphide substrate

Kanaya, H., Oda, T., Iizasa, N. & Kato, K., Apr 4 2016, 2015 International Symposium on Antennas and Propagation, ISAP 2015. Institute of Electrical and Electronics Engineers Inc., 7447277

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Indium phosphide
indium phosphides
antenna arrays
Antenna arrays
slots
3 Citations (Scopus)

4-channel synchronous THz-wave generatorcomposed of arrayed UTC-PDs and antennas

Sakano, G., Haruki, J., Sakuma, K. & Kato, K., Oct 26 2016, 2016 21st OptoElectronics and Communications Conference, OECC 2016 - Held Jointly with 2016 International Conference on Photonics in Switching, PS 2016. Institute of Electrical and Electronics Engineers Inc., 7718383

Research output: Chapter in Book/Report/Conference proceedingConference contribution

generators
antennas
Antennas
2 Citations (Scopus)

Coherent THz wave combiner composed of arrayed uni-traveling carrier photodiodes and planar lightwave circuit

Sakuma, K., Haruki, J., Sakano, G., Kato, K., Hisatake, S. & Nagatsuma, T., Jan 1 2016, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX. Sadwick, L. P. & Yang, T. (eds.). SPIE, Vol. 9747. 97471O

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phase control
phase control
Photodiode
Photodiodes
photodiodes
1 Citation (Scopus)

Compact and robust phase stabilization system for high-frequency carrier generation using an integrated lightwave circuit

Fujimura, Y., Sakuma, K., Takeuchi, S., Kato, K., Hisatake, S. & Nagatsuma, T., Feb 23 2016, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416481

Research output: Chapter in Book/Report/Conference proceedingConference contribution

integrated circuits
Integrated circuits
Stabilization
stabilization
binary phase shift keying
1 Citation (Scopus)

Demonstration of controlling chromatic dispersion at SOA with Mach-Zehnder interferometric measurement system

Yamanaka, Y., Fujimura, Y. & Kato, K., Oct 26 2016, 2016 21st OptoElectronics and Communications Conference, OECC 2016 - Held Jointly with 2016 International Conference on Photonics in Switching, PS 2016. Institute of Electrical and Electronics Engineers Inc., 7718412

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chromatic dispersion
Service oriented architecture (SOA)
Optical devices
Mach number
Demonstrations
2 Citations (Scopus)

Fast wavelength stabilization of tunable lasers with the internal wavelength locker

Kimura, R., Tatsumoto, Y., Sakuma, K., Onji, H., Shimokozono, M., Ishii, H. & Kato, K., Feb 23 2016, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416472

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser tuning
tunable lasers
Stabilization
stabilization
Wavelength

Internal-wavelength-locker based feedforward/feedback co-operative wavelength control for 100 ns wavelength switching

Kimura, R., Tatsumoto, Y., Kuboki, T. & Kato, K., 2016, 21st Microoptics Conference.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Novel lightwave-interferometric phase detection for phase stabilization of two-tone coherent millimeter-wave/microwave carrier generation

Takeuchi, S., Sakuma, K., Kato, K., Yoshimizu, Y., Yasuda, Y., Hisatake, S. & Nagatsuma, T., Sep 1 2016, In : IEICE Transactions on Electronics. E99C, 9, p. 1048-1055 8 p.

Research output: Contribution to journalArticle

Millimeter waves
Mach number
Stabilization
Microwaves
Modulation