Dependence of Brillouin frequency shift on temperature in poly(pentafluorostyrene)-based polymer optical fibers estimated by acoustic velocity measurement. - Kazunari Minakawa; Kotaro Koike; Neisei Hayashi; Yasuhiro Koike; Yosuke Mizuno; Kentaro Nakamura (IEICE Electron. Express, 2014)

High-speed plastic optical fibers and their simple interconnects for 4K/8K video transmission. - Yasuhiro Koike; Azusa Inoue (ECOC, 2015)

Intrinsic robustness of fiber misaligned connections and reflection noise in plastic optical fiber links for cost-effective radio-over-fiber systems. - Yuki Matsumoto; Motoharu Matsuura; Rei Furukawa; Azusa Inoue; Yasuhiro Koike (OFC, 2016)

Misalignment Tolerance of Pluggable Ballpoint-Pen Interconnect of Graded-Index Plastic Optical Fiber for 4K/8K UHD Display. - Azusa Inoue; Yasuhiro Koike (IEICE Trans. Electron., 2016)

Development of Graded-Index Plastic Optical Fiber for Significantly Low-Noise Data Transmission. - Azusa Inoue; Yasuhiro Koike (ECOC, 2018)

Low-Noise Radio Over Plastic Optical Fiber for TV Broadcasting in Ultrahigh-Definition Era. - Azusa Inoue; Yasuhiro Koike (OFC, 2019)

Proposal of Novel Temperature-Independent Zero-Zero-Birefringence Polymer with High Heat-Resistance. - Kohei Watanabe; Yuma Kobayashi; Yasuhiro Koike (IEICE Trans. Electron., 2021)

N × 106.25 Gb/s PAM4 Transmission Using Multicore Graded-Index Plastic Optical Fiber. - Yasuhiro Koike; Kenta Muramoto (OFC, 2025)

Ultra-Low Bit Error Rate Plastic Optical Fiber Link with Enhanced Optical Return Loss Tolerance and Alignment Robustness for Advanced PAM4 Transceiver Design. - Kenta Muramoto; Yasuhiro Koike (OFC, 2025)