Abstract
The bandwidth of multimode W-type plastic optical fibers (POFs) with graded-index (GI) core distribution is investigated by solving the time-dependent power flow equation. The multimode W-type GI POF is designed from a multimode single-clad (SC) GI POF fiber upon modification of the cladding layer of the latter. Results show how the bandwidth in W-type GI POFs can be enhanced by increasing the wavelength for different widths of the intermediate layer and refractive indices of the outer cladding. These fibers are characterized according to their apparent efficiency to reduce modal dispersion and increase bandwidth.
Highlights
Methods are needed for calculating modal attenuation and coupling to loss modes of W-type fiber’s intermediate layer, and for optimizing the fiber’s refractive index profile in order to minimize the group delay difference between modes in the output field [20,22]
We examined how the wavelength influences the bandwidth for various W-type GI plastic optical fibers (POFs) configurations
We investigated the bandwidth at various wavelengths in a differently constructed W-type GI POF designed from the SC GI POF (Figure 1a), which we experimentally investigated in our previously published works [8,10]
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. The growth was accelerated by streaming transmissions and cloud computing This concept becomes a strong approach for use in optical networking strategies for automotive communications systems, given the advances in both intelligent driving systems and multimedia services. Since the structure of fiber can influence its features significantly, different POFs (double-clad fibers) of the step-index (SI), GI and W types were proposed [15,16,17] Due to their progressively decreased core refractive index with a radial distance from the fiber axis, GI POFs have a much lower modal dispersion than SI POFs [18]. Methods are needed for calculating modal attenuation and coupling to loss modes of W-type fiber’s intermediate layer, and for optimizing the fiber’s refractive index profile in order to minimize the group delay difference between modes in the output field [20,22]. It should be noted that our calculations include modal attenuation, mode coupling and modal dispersion
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