Polymeric optical fibers

In addition, these fluorinated monofunctional telomers can be interesting precursors of original macromonomers leading to novel polymeric optical fibers [393] or grafted copolymers [134]. 

From a material s point of view polymeric optical fibers are selected first of all on the basis of their optical characteristics. Table 4.4 summarizes the relationships between various physical parameters and fundamental optical properties. In recent years, Lorentz relationships between the refractive index and molecular parameters have been derived to guide experimentalists in selecting acceptable polymers. Representative optical characteristics of transparent polymers are reviewed in Table 4.5. The polymers CR-39, PMMA, and PC are... 

Table 4.4 Physical Parameters of Polymeric Optical Fibers...

Seim, B., et al., 2010. Polymeric optical fiber fabrics for illumination and sensorial applications in textiles. Journal of Intelligent Material Systems and Structures 21 (11), 1061—1071. Available at http //jim.sagepub.eom/cgi/doi/10.1177/1045389X10377676 (accessed 22.09.14.). 

Wang, J., et al., 2011. Design and development of polymeric optical fiber jacquard fabric with dynamic pattern display. Textile Research Journal. 

Optical waveguides Polymeric optical fibers for short-distance data communication systems... 

Polymeric optical fibers have been prepared from various amorphous polymers such as polycarbonate, poly(methyl methacrylate), polystyrene and diglycol diallylcarbonate resin [339,340]. In these cases, the light attenuation of the respective optical fibers is due to absorption by the higher harmonics of C—H vibrations. The substitution of hydrogen by deuterium, fluorine or chlorine results in a shift to higher wavelengths of the absorption due to overtone vibrations, and reduces the attenuation at key communication wavelengths (as shown in Table 3.37). 

In fact, commercial polymeric optical fibers prepared from the perfluorinated polymer poly(perfluorobutenyl vinyl ether), of the structure shown in Chart 3.23, exhibit an attenuation of 15 dBkm at 1 = 1310 nm. 

---