Planar arrayed waveguide device structure for 2D wavelength demultiplexing. - Hideaki Okayama (IEICE Electron. Express, 2004)

Monolithically integrated grating and deflector structure for wavelength filtering. - Hideaki Okayama (IEICE Electron. Express, 2005)

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)

Silicon waveguide polarization rotation Bragg grating using directional coupling. - Hideaki Okayama; Yosuke Onawa; Hiroyuki Takahashi; Daisuke Shimura; Hiroki Yaegashi; Hironori Sasaki (OECC/PSC, 2019)

Silicon waveguide polarization beam splitter using reversed Δβ coupler structure. - Hideaki Okayama; Yosuke Onawa; Hiroyuki Takahashi; Daisuke Shimura; Hiroki Yaegashi; Hironori Sasaki (OECC/PSC, 2019)

Receiver Characteristics of 4ch Transceiver Module with Si Photonics Integrated Chip Suitable for TWDM-PON ONU. - Hideki Ono; Hideaki Okayama; Yosuke Onawa; Isao Tamai; Hiroyuki Takahashi; Satoshi Miyamura; Tatsushi Hasegawa; Masanori Itoh; Daisuke Shimura; Hiroki Yaegashi; Hironori Sasaki (OECC/PSC, 2019)

A Compact Monitoring Circuit to Accurately Extract Fabrication Deviation in Silicon Waveguides. - Tsuyoshi Horikawa; Hideaki Okayama; Yosuke Onawa; Daisuke Shimura; Jun Ushida; Akemi Shiina; Tadashi Murao; Hiroki Yaegashi (ECOC, 2020)

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)