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Yohei Sobu
Researcher at National Institute of Advanced Industrial Science and Technology
Publications - 19
Citations - 173
Yohei Sobu is an academic researcher from National Institute of Advanced Industrial Science and Technology. The author has contributed to research in topics: Silicon photonics & Photonics. The author has an hindex of 6, co-authored 17 publications receiving 129 citations.
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Journal ArticleDOI
A 300-mm Silicon Photonics Platform for Large-Scale Device Integration
Tsuyoshi Horikawa,Daisuke Shimura,Hideaki Okayama,Seok-Hwan Jeong,Hiroyuki Takahashi,Jun Ushida,Yohei Sobu,Akemi Shiina,Masatoshi Tokushima,Keizo Kinoshita,Tohru Mogami +10 more
TL;DR: In this paper, a 300mm silicon photonics platform for large-scale device integration was developed, leveraging 40nm complementary metal-oxide-semiconductor technology, which can enable manufacturing of high-speed, low-power optical interconnects.
Journal ArticleDOI
Low-Crosstalk Simultaneous 16-Channel × 25 Gb/s Operation of High-Density Silicon Photonics Optical Transceiver
T. Aoki,Shigeaki Sekiguchi,Takasi Simoyama,Shinsuke Tanaka,Motoyuki Nishizawa,Nobuaki Hatori,Yohei Sobu,Akio Sugama,Tomoyuki Akiyama,A. Hayakawa,Hidenobu Muranaka,T. Mori,Yanfei Chen,Seok-Hwan Jeong,Yu Tanaka,Ken Morito +15 more
TL;DR: In this paper, the flip chip bonded bridge structure realized high density of about 363 GB/s/cm2, and demonstrated simultaneously on all 16 channels error-free operations with low crosstalk penalties of Tx-to-Tx 1.4 dB, Rx-toRx 1.6 dB, and Txto-Rx < 0.1 dB.
Journal ArticleDOI
1.2 Tbps/cm 2 Enabling Silicon Photonics IC Technology Based on 40-nm Generation Platform
Tohru Mogami,Tsuyoshi Horikawa,Keizo Kinoshita,Yasuhiko Hagihara,Jun Ushida,Masatoshi Tokushima,Junichi Fujikata,Shigeki Takahashi,Takanori Shimizu,Akio Ukita,Koichi Takemura,Mitsuru Kurihara,Kenichiro Yashiki,Daisuke Okamoto,Yasuyuki Suzuki,Yohei Sobu,Seok-Hwan Jeong,Yu Tanaka,Takahiro Nakamura,Kazuhiko Kurata +19 more
TL;DR: In this article, the authors used a silicon photonics platform based on 40-nm-node CMOS technology to fabricate wideband optical ICs with a footprint of 25 mm.
Journal ArticleDOI
Si-wire two-dimensional grating coupler with polarization-dependent loss of lower than 0.3 dB over a 60-nm-wide spectral range
TL;DR: In this paper, the authors numerically analyzed the dependence of the PDL of a 2D-GC in terms of the scatterer arrays and shapes using the 3D-FDTD method.
Proceedings ArticleDOI
Low Crosstalk Simultaneous 16-channel × 25 Gb/s Operation of High Density Silicon Photonics Optical Transceiver
T. Aoki,Shigeaki Sekiguchi,Takasi Simoyama,Shinsuke Tanaka,Motoyuki Nishizawa,Nobuaki Hatori,Yohei Sobu,Akio Sugama,Tomoyuki Akiyama,A. Hayakawa,Hidenobu Muranaka,T. Mori,Yanfei Chen,Seok-Hwan Jeong,Yu Tanaka,Ken Morito +15 more
TL;DR: A high density broadband 16-channel × 25 Gb/s silicon photonics optical transceiver is developed and the simultaneous multichannel error free operations with low crosstalk penalties are demonstrated.