HIGH-BANDWIDTH, HIGH-NUMERICAL APERTURE GRADED-INDEX POLYMER OPTICAL-FIBER

A new large core (0.5-1.0 mm) graded-index polymer optical fiber was p roposed to solve the connection problem of the single-mode silica fibe r indoor use for high speed multimedia network. The bending loss for 1 0-mm bending diameter was dramatically decreased from 20 dB to less th an 1 dB by preparing the high numerical aperture graded-index polymer optical fiber. The bandwidth was 585.2 MHz . km which was one hundred times larger than that of any existent step-index polymer optical fibe rs, and the attenuation was 150 dB/km at 650-nm wavelength.