Y
Yuta Ueda
Researcher at Nippon Telegraph and Telephone
Publications - 82
Citations - 774
Yuta Ueda is an academic researcher from Nippon Telegraph and Telephone. The author has contributed to research in topics: Laser & Interconnection. The author has an hindex of 14, co-authored 70 publications receiving 572 citations.
Papers
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Journal ArticleDOI
Over 67 GHz Bandwidth and 1.5 V Vπ InP-Based Optical IQ Modulator With n-i-p-n Heterostructure
Yoshihiro Ogiso,Josuke Ozaki,Yuta Ueda,Norihide Kashio,Nobuhiro Kikuchi,Eiichi Yamada,Hiromasa Tanobe,Shigeru Kanazawa,Hiroshi Yamazaki,Yoshitaka Ohiso,Takuro Fujii,Masaki Kohtoku +11 more
TL;DR: In this paper, a high-bandwidth InP-based Mach-Zehnder modulator and in-phase/quadrature (IQ) modulators were proposed by combining an n-i-p-n heterostructure and a capacitively loaded traveling wave electrode.
Proceedings ArticleDOI
Transmission of 214-Gbit/s 4-PAM signal using an ultra-broadband lumped-electrode EADFB laser module
Shigeru Kanazawa,Hiroshi Yamazaki,Yasuhiko Nakanishi,Takeshi Fujisawa,Kiyoto Takahata,Yuta Ueda,Wataru Kobayashi,Yoshifumi Muramoto,Hiroyuki Ishii,Hiroaki Sanjoh +9 more
TL;DR: Using a lumped-electrode EADFB laser with a modulation bandwidth of ~59 GHz, this work demonstrated single-wavelength single-polarization direct-detection 4-PAM transmission with the record net data rate of 200 Gbit/s.
Journal ArticleDOI
80-GHz Bandwidth and 1.5-V V π InP-Based IQ Modulator
Yoshihiro Ogiso,Yasuaki Hashizume,Hiromasa Tanobe,Nobuhiro Nunoya,Minoru Ida,Yutaka Miyamoto,M. Ishikawa,Josuke Ozaki,Yuta Ueda,Hitoshi Wakita,Munehiko Nagatani,Hiroshi Yamazaki,Masanori Nakamura,Takayuki Kobayashi,Shigeru Kanazawa +14 more
TL;DR: In this paper, a new n-i-p-n heterostructure and an optimized capacitance-loaded traveling-wave electrode (CL-TWE) were introduced to reduce high-frequency electrical losses of the modulator.
Journal ArticleDOI
214-Gb/s 4-PAM Operation of Flip-Chip Interconnection EADFB Laser Module
Shigeru Kanazawa,Hiroshi Yamazaki,Yasuhiko Nakanishi,Yuta Ueda,Wataru Kobayashi,Yoshifumi Muramoto,Hiroyuki Ishii,Hiroaki Sanjoh +7 more
TL;DR: In this paper, a Hi-FIT LE-EADFB laser module has been fabricated for single-wavelength single-polarization direct-detection 4-PAM transmission with a record net data rate of 200 Gb/s.
Journal ArticleDOI
Flip-Chip Interconnection Lumped-Electrode EADFB Laser for 100-Gb/s/ $\lambda $ Transmitter
Shigeru Kanazawa,Takeshi Fujisawa,Kiyoto Takahata,Toshio Ito,Yuta Ueda,Wataru Kobayashi,Hiroyuki Ishii,Hiroaki Sanjoh +7 more
TL;DR: The flip-chip interconnection provides a flatter frequency response characteristic and a higher modulation bandwidth as mentioned in this paper, achieving 103Gb/s nonreturn to zero and equalizer-free 56GBd 4pulse-amplitude modulation operation after a 10-km single-mode fiber transmission.