Keio University

Presentations

TSUDA Hiroyuki

21-40 items (total 168)

A Wavefront Control Type Compact Silicon Wavelength Selective Switch

Speaker
Kyosuke Muramatsu and Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Photonics in Switching 2015(Venue Florence, Italy) Dates 2015.09.22 - 2015.09.22
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

A 200-GHz Spacing, 17-Channel, 1x2 Wavelength Selective Switch using a Silicon Arrayed-Waveguide Grating with Loopback

Speaker
Hideaki Asakura, Takemasa Yoshida, Hiroyuki Tsuda, Keijiro Suzuki, Ken Tanizawa, Munehiro Toyama, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima
Conference Title
[Conference Category International presentation] Conference Title Photonics in Switching 2015(Venue Florence, Italy) Dates 2015.09.22 - 2015.09.22
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

Design of a Current-Driven Optical Gate Switch using a Si Waveguide and Phase-Change Material

Speaker
Kentaro Kato and Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO Pacific Rim 2015) Dates 2015.08.24 - 2015.08.24
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

Broadband 2×2 Multimode Interference Coupler for T- and O-band Communication by Wavefront Matching Method

Speaker
Koki Sugiyama and Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Integrated Photonics Research, Silicon and Nano Photonics (IPR) 2015(Venue Boston, Massachusetts, U. S. A.) Dates 2015.06.27 - 2015.06.27
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Low-loss segmented joint structure between a slab waveguide and arrayed waveguides designed by simple optimization method

Speaker
K. Shibuya, N. A. Idris, H. Asakura and H. Tsuda
Conference Title
[Conference Category International presentation] Conference Title Photonics West 2015, OPTO(Venue San Francisco, U. S. A.) Dates 2015.02.07 - 2015.02.07
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

External cavity laser using a InAs quantum dot gain chip and an arrayed-waveguide grating for T-band optical communications

Speaker
Hideki Shibutani, Yasunori Tomomatsu, Yoshinori Sawado, Katsumi Yoshizawa, Hideaki Asakura, Nazirul Afham Idris, and Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Photonics West 2015, OPTO(Venue San Francisco, U. S. A.) Dates 2015.02.07 - 2015.02.07
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Multi-functional optical signal processing using optical spectrum control circuit

Speaker
Shuhei Hayashi, Tatsuhiko Ikeda, Takayuki Mizuno, Hiroshi Takahashi, and Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Photonics West 2015, OPTO(Venue San Francisco, U. S. A.) Dates 2015.02.07 - 2015.02.07
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Densely packed N×N wavelength cross-connect switch module

Speaker
Hisato Uetsuka, Masao Tachikura, Hitoshi Kawashima, Kazuhiro Ikeda, Keisuke Sorimoto, Hiroyuki Tsuda and Keiichi Sasaki, Yuto Yamashita
Conference Title
[Conference Category International presentation] Conference Title Photonics West 2015, OPTO(Venue San Francisco, U. S. A.) Dates 2015.02.07 - 2015.02.07
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

T/O-band wavelength routing system using quantum dot semiconductor devices and 1081-channel AWG router

Speaker
Ryogo Kubo, Takuto Fujimoto, Takahiro Shobudani, Yudai Okuno, Masaki Suzuki, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu, Katsumi Yoshizawa
Conference Title
[Conference Category International presentation] Conference Title The Optical Networking and Communication Conference & Exhibition (OFC 2018) Dates 2018.03.15 - 2018.03.15
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

Current driven optical gate switch using a Ge2Sb2Te5 thin film and an indium tin oxide heater

Speaker
Fumi Nakamura, Kentaro Kato, Masashi Kuwahara, Hitoshi Kawashima, Tohru Tsuruoka, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title The Symposium on Phase Change Oriented Science (PCOS) 2017 Dates 2017.11.16 - 2017.11.16
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Low-power consumption optical switches using phase-change material for a large capacity photonic network system

Speaker
Hiroyuki Tsuda, Fumi Nakamura, Kentaro Kato, Masashi Kuwahara, Hitoshi Kawashima, Tohru Tsuruoka
Conference Title
[Conference Category International presentation] Conference Title The Symposium on Phase Change Oriented Science (PCOS) 2017 Dates 2017.11.16 - 2017.11.16
Invitation Status
With
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (invited, special)

Experimental Demonstration of 4K-UHD Video Transmission Using T-Band Wavelength Routing System for Passive Optical Local Area Networks

Speaker
Ryogo Kubo, Hiroyuki Tsuda, Makoto Sudo, Tadashi Hajikano, Yasunori Tomomatsu and Katsumi Yoshizawa
Conference Title
[Conference Category International presentation] Conference Title The 43rd European Conference on Optical Communication (ECOC 2017) Dates 2017.09.19 - 2017.09.19
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

Wavelength-Selective External-Cavity Laser Using an Optical Switch Integrated Arrayed-Waveguide Grating for T-band Communications

Speaker
Yudai Okuno, Hideaki Shibutani, Katsumi Yoshizawa, Yasunori Tomomatsu, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title The 43rd European Conference on Optical Communication (ECOC 2017) Dates 2017.09.19 - 2017.09.19
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Wideband, Transmission Flattened Arrayed Waveguide Grating Router for T-band and O-band Communication

Speaker
Masaki Suzuki, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Integrated Photonics Research 2017 Dates 2017.07.25 - 2017.07.25
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

1×2 Silicon Wavelength Selective Switch using Fold Back Arrayed-waveguide Gratings

Speaker
Fumi Nakamura, Keijiro Suzuki, Ken Tanizawa, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Photonics in Switching 2017 Dates 2017.07.25 - 2017.07.25
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

Wavelength-Selective External Cavity Laser Using an InAs Quantum Dot Gain Chip and a Planar Lightwave Circuit for T-band WDM Communications

Speaker
Yudai Okuno, Katsumi Yoshizawa, Yasunori Tomomatsu, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title CLEO/Europe-EQEC 2017 Dates 2017.06.26 - 2017.06.26
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

Wavelength Switching Characteristics of the External Cavity Laser for T-band Communications

Speaker
Yudai Okuno, Katsumi Yoshizawa, Yasunori Tomomatsu, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title The 4th International Symposium on Extremely Advanced Transmission Technologies (EXAT2017) Dates 2017.06.07 - 2017.06.07
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Polarization Diversity Quantum Dot Semiconductor Optical Amplifier Module for T-band Communication

Speaker
Hiroyuki Tsuda, Takafumi Chiba, Tadashi Hajikano, Katsumi Yoshizawa, Yasunori Tomomatsu, Hiroshi Takahashi, Takayuki Kawashima, Shojiro Kawakami, Yudai Okuno Koki Sugiyama
Conference Title
[Conference Category International presentation] Conference Title CLEO 2017 Dates 2017.05.15 - 2017.05.15
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Oral presentation (general)

1 × 2 Wavefront Control Type Wavelength-Selective Switch by Silicon Waveguides

Speaker
Fumi Nakamura, Keijiro Suzuki, Ken Tanizawa, Minoru Ohtsuka, Nobuyuki Yokoyama, Kazuyuki Matsumaro, Miyoshi Seki, Keiji Koshino, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashima, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title European Conference on Integrated Optics (ECIO) 2017(Venue Eindhoven, the Netherlands) Dates 2017.04.03 - 2017.04.03
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation

Low-loss and low-crosstalk Si polarization splitters with two-step etching

Speaker
Shigeaki Sakai, Naotaka Iwamoto, Hiroyuki Tsuda
Conference Title
[Conference Category International presentation] Conference Title Frontier in Optics 2016(Venue Rochester, U. S. A.) Dates 2016.10.20 - 2016.10.20
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
Conference Category
Poster presentation