Elephant coupler: Vertically curved Si waveguide with wide and flat wavelength window insensitive to coupling angle. - Tomoya Yoshida; Emiko Omoda; Yuki Atsumi; M. Mori; Youichi Sakakibara (ECOC, 2015)

Large mode-field-diameter surface optical coupler based on SiO2-capsuled vertically curved Si waveguide. - Yuki Atsumi; Tomoya Yoshida; Emiko Omoda; Youichi Sakakibara (OFC, 2017)

High-Performance Surface Optical Coupler Based on SiO2-Capped Vertically Curved Si Waveguide. - Yuki Atsumi; Tomoya Yoshida; Emiko Omoda; Youichi Sakakibara (ECOC, 2018)

Characterization of Coupling Properties of Vertically Curved Si Surface Optical Coupler Designed for Coupling with 5-µm-MFD SMF. - Yuki Atsumi; Tomoya Yoshida; Emiko Omoda; Youichi Sakakibara (OFC, 2018)

Broadband and Polarization Insensitive Surface Optical Coupler using Vertically Curved Waveguides Fabricated with ArF-Immersion Lithography. - Tomoya Yoshida; Yuki Atsumi; Emiko Omoda; Youichi Sakakibara (OFC, 2019)

Vertically-Curved Si Surface Optical Coupler for Coupling with Standard Single-Mode Optical Fibers. - Yuki Atsumi; Tomoya Yoshida; Emiko Omoda; Youichi Sakakibara (OFC, 2020)

Vertical Optical Fiber Assembly on Silicon Photonic Chips using 3D-Curved Silicon Waveguide Couplers. - Youichi Sakakibara; Tomoaki Kiriyama; Tomoya Yoshida; Yuki Atsumi; Emiko Omoda; Katsuhiro Iwasaki; Takashi Kato (OFC, 2020)

Core-to-Core Switching Module for 4-Core MCFs Using Silicon Photonics Matrix Switch Incorporating Silicon Vertically Curved Optical Coupler. - Tomoya Yoshida; Yuki Atsumi; Emiko Omoda; Katsuya Kito; Katsuhiro Iwasaki; Yusuke Kinoshita; Tomoaki Kiriyama; Ryotaro Konoike; Keijiro Suzuki; Ryosuke Matsumoto; Takashi Inoue; Kazuhiro Ikeda; et al. (OFC, 2023)