A perfluorinated graded index polymer optical fiber (PFGI-POF) has been developed and manufactured for data communication to provide a high bandwidth with easy termination and cabling. In the PFGI-POF technology, the graded refractive index profile using dopants is a key technology to obtain a high bandwidth, excellent transparency and thermal durability. This study of the dopant selection for the PFGI-POF is reported for the first time.

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We succeeded in fabricating a low-loss and high-bandwidth polymer optical waveguide with graded index type 61-127 cores. The propagation loss is 0.0004 dB/cm at 850 nm and bandwidth of each GI core is 3.2 GHz through 200m waveguide.

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