Plastic fiber (POF) is a kind of fiber (optical guide fiber) with high transparency polymers such as polystyrene (PS), polymethacrylate (PMMA) and polycarbonate (PC) as core materials, and PMMA, fluoroplastics as cortex materials. Different materials have different optical attenuation properties and temperature application ranges. The main performance indicators are:

attenuation

The attenuation of POF plastic fiber mainly depends on the scattering loss and absorption loss of selected materials. To be considered as a communication grade plastic fiber, a basic requirement is that the attenuation of PMMA plastic fiber should be lower than 180dB/km.

Plastic optical fiber

bandwidth

Gradient plastic fiber is a kind of fiber with gradient refractive index. As long as the gradient refractive index distribution is appropriate, the mode dispersion can be suppressed, the data aperture can be kept large, and the output light wave can be broadened relative to the human light wave. If the refractive index is well distributed, the material dispersion becomes the main factor to determine the transmission bandwidth. As long as sufficient attention is paid to the material dispersion in the selection, it is completely feasible to obtain a bandwidth of more than Ghz•km.

Heat resistance

Importantly, the heat resistance of POF plastic fiber is mainly determined by its composition. The composition of good heat - resisting material determines the good heat - resisting property of plastic fiber. The indexes to judge the heat resistance of the material are vitrification temperature, vica softening point, thermal deformation temperature and so on.

connectivity

Communication plastic fiber mostly adopts fiber with diameter of 1mm, which is 8 ~ 20 times of quartz fiber. Thick plastic fibers connect much more easily than quartz ones.