reducing attenuation. These efforts have led to the development of PMMA-core POFs with attenuation values below 150 dB/km at a wavelength of 650 nm.

Giok Djan Khoe at Eindhoven University of Technology and Yasuhiro Koike, a polymer scientist at Keio University pioneered in high transmission speed over graded index polymer optical fibers (GIPOF), and set a world record of 2.5 Gbit/s in 1999. They demonstrated in 2001 that Gigabit transmission