Optical interconnect technologies for high-speed VLSI chips using silicon nano-photonics. - Keishi Ohashi; Junichi Fujikata; Masafumi Nakada; Tsutomu Ishi; Kenichi Nishi; Hirohito Yamada; Muneo Fukaishi; Masayuki Mizuno; Koichi Nose; Ichiro Ogura; Yutaka Urino; Toshio Baba (ISSCC, 2006)

LSI On-Chip Optical Interconnection with Si Nano-Photonics. - Junichi Fujikata; Kenichi Nishi; Akiko Gomyo; Jun Ushida; Tsutomu Ishi; Hiroaki Yukawa; Daisuke Okamoto; Masafumi Nakada; Takanori Shimizu; Masao Kinoshita; Koichi Nose; Masayuki Mizuno; et al. (IEICE Trans. Electron., 2008)

On-Chip Optical Interconnect. - Keishi Ohashi; Kenichi Nishi; Takanori Shimizu; Masafumi Nakada; Junichi Fujikata; Jun Ushida; Sunao Torii; Koichi Nose; Masayuki Mizuno; Hiroaki Yukawa; Masao Kinoshita; Nobuo Suzuki; et al. (Proc. IEEE, 2009)

High performance PIN Ge photodetector and Si optical modulator with MOS junction for photonics-electronics convergence system. - Junichi Fujikata; Masataka Noguchi; Makoto Miura; Masashi Takahashi; Shigeki Takahashi; Tsuyoshi Horikawa; Yutaka Urino; Takahiro Nakamura; Yasuhiko Arakawa (ASP-DAC, 2013)

Advances in High-Density Inter-Chip Interconnects with Photonic Wiring. - Yutaka Urino; Yoshiji Noguchi; Nobuaki Hatori; Masashige Ishizaka; Tatsuya Usuki; Junichi Fujikata; Koji Yamada; Tsuyoshi Horikawa; Takahiro Nakamura; Yasuhiko Arakawa (IEICE Trans. Electron., 2013)

Record-low Injection-current Strained SiGe variable optical attenuator with optimized lateral PIN junction. - Younghyun Kim; Junichi Fujikata; Shigeki Takahashi; Mitsuru Takenaka; Shinichi Takagi (ECOC, 2014)

Demonstration of 25-Gbps optical data links on silicon optical interposer using FPGA transceiver. - Daisuke Okamoto; Yutaka Urino; Takeshi Akagawa; Suguru Akiyama; Takeshi Baba; Tatsuya Usuki; Makoto Miura; Junichi Fujikata; Takanori Shimizu; Makoto Okano; Nobuaki Hatori; Masashige Ishizaka; et al. (ECOC, 2014)

First demonstration of athermal silicon optical interposers with quantum dot lasers operating up to 125 °C. - Yutaka Urino; Nobuaki Hatori; Takeshi Akagawa; Takanori Shimizu; Makoto Okano; Masashige Ishizaka; Tsuyoshi Yamamoto; Hideaki Okayama; Yosuke Onawa; Hiroyuki Takahashi; Daisuke Shimura; Hiroki Yaegashi; et al. (ECOC, 2014)

Ultra-small butt-joint Ge photodetector featuring self-aligned in-situ doping and CMP-free novel CVD process. - Makoto Miura; Junichi Fujikata; Masataka Noguchi; Yasuhiko Arakawa (OFC, 2014)

SiGe-based carrier-injection Mach-Zehnder modulator with enhanced plasma dispersion effect in strained SiGe. - Younghyun Kim; Junichi Fujikata; Shigeki Takahashi; Mitsuru Takenaka; Shinichi Takagi (OFC, 2015)

5 mW/Gbps hybrid-integrated Si-photonics-based optical I/O cores and their 25-Gbps/ch error-free operation with over 300-m MMF. - Kenichiro Yashiki; Yasuyuki Suzuki; Yasuhiko Hagihara; Mitsuru Kurihara; Masatoshi Tokushima; Junichi Fujikata; Akio Ukita; Koichi Takemura; Takanori Shimizu; Daisuke Okamoto; Jun Ushida; Shigeki Takahashi; et al. (OFC, 2015)

Bit error rate analysis of a silicon optical interposer using its equivalent circuit. - Daisuke Okamoto; Takeshi Akagawa; Tatsuya Usuki; Junichi Fujikata; Suguru Akiyama; Yutaka Urino; Takahiro Nakamura (IEICE Electron. Express, 2015)

25-Gbps error-free operation of chip-scale Si-photonics optical transmitter over 70°C with integrated quantum dot laser. - Kenichiro Yashiki; Kenji Mizutani; Jun Ushida; Yasuyuki Suzuki; Mitsuru Kurihara; Masatoshi Tokushima; Junichi Fujikata; Yasuhiko Hagihara; Kazuhiko Kurata (OFC, 2016)

III-V/Si Hybrid MOS Optical Phase Modulator for Si Photonic Integrated Circuits. - Mitsuru Takenaka; Jaehoon Han; Frédéric Boeuf; Jin-Kwon Park; Qiang Li; Chong Pei Ho; Dongsheng Lyu; Shuhei Ohno; Junichi Fujikata; Shigeki Takahashi; Shinichi Takagi (ECOC, 2018)

High-efficiency, Low-loss Optical Phase Modulator based on III-V/Si Hybrid MOS Capacitor. - Mitsuru Takenaka; Jaehoon Han; Jin-Kwon Park; Frédéric Boeuf; Junichi Fujikata; Shigeki Takahashi; Shinichi Takagi (OFC, 2018)

Si Photonics Butt-Coupled Waveguide Germanium Avalanche Photodiodes with Lateral SAM Structures. - Hideki Ono; Junichi Fujikata; Masataka Noguchi; Hiroyuki Takahashi; Daisuke Shimura; Hiroki Yaegashi; Hasaki Sasaki (OFC, 2019)

Fingertip-Size Optical Module, "Optical I/O Core", and Its Application in FPGA. - Takahiro Nakamura; Kenichiro Yashiki; Kenji Mizutani; Takaaki Nedachi; Junichi Fujikata; Masatoshi Tokushima; Jun Ushida; Masataka Noguchi; Daisuke Okamoto; Yasuyuki Suzuki; Takanori Shimizu; Koichi Takemura; et al. (IEICE Trans. Electron., 2019)

High-Speed and 16 λ-WDM Operation of Ge/Si Electro-Absorption Modulator for C-Band Spectral Regime. - Junichi Fujikata; Masataka Noguchi; Seok-Hwan Jeong; Yosuke Onawa; Daisuke Shimura; Kazuki Kawashita; Riku Katamawari; Hideaki Okayama; Shigeki Takahashi; Hideki Ono; Hiroyuki Takahashi; Hiroki Yaegashi; et al. (OFC, 2020)

Low Parasitic Capacitance III-V/Si Hybrid MOS Optical Modulator toward High-speed Modulation. - Qiang Li; Chong Pei Ho; Junichi Fujikata; Masataka Noguchi; Shigeki Takahashi; Kasidit Toprasertpong; Shinichi Takagi; Mitsuru Takenaka (OFC, 2020)

Taper-Less III-V/Si Hybrid MOS Optical Phase Shifter using Ultrathin InP Membrane. - Shuhei Ohno; Qiang Li; Naoki Sekine; Junichi Fujikata; Masataka Noguchi; Shigeki Takahashi; Kasidit Toprasertpong; Shinichi Takagi; Mitsuru Takenaka (OFC, 2020)

High Performance Si Photonics Devices and InP/EO Polymer Hybrid Optical Modulator for Data Communication and Computing. - Junichi Fujikata; Masataka Noguchi; Tomoki Sakuma; Daisuke Okamoto; Yasuhiko Ishikawa; Shiyoshi Yokoyama (OECC/PSC, 2022)

Demonstration of All-Optical Ultrafast Switching, Using High-Quality Graphene. - Tomoki Kusaka; Akihiro Furube; Tetsuro Katayama; Hiroki Kishikawa; Yasuhide Ohno; Masao Nagase; Junichi Fujikata (OECC/PSC, 2022)

High-Performance EO Polymer/Si and InP Nano-Hybrid Optical Modulators in O-band and C-band Wavelengths. - Junichi Fujikata; Hiromu Sato; Alisa Bannaron; Guo-Wei Lu; Shiyoshi Yokoyama (OFC, 2023)