GI-core polymer optical waveguide for triggering the migration of optical interconnects from inter-rack to PCBs. - Takaaki Ishigure (ECOC, 2014)

Polymer waveguide based spot-size converter for low-loss coupling between Si photonics chips and single-mode fibers. - Kazuki Yasuhara; Feng Yu; Takaaki Ishigure (OFC, 2017)

Low-Loss 3-Dimensional Shuffling Graded-Index Polymer Optical Waveguides for Optical Printed Circuit Boards. - Omar Faruk Rasel; Akira Yamauchi; Takaaki Ishigure (IEICE Trans. Electron., 2018)

GI-core Multimode and Single-mode Polymer Waveguides for High-density Co-packaging. - Takaaki Ishigure (OFC, 2022)