Photonic bandgap Bragg fibers feature periodic sequence of layers of different materials. In those particular waveguides, the wave path is controlled by a periodical spatial modification of the refractive index. Depending on the periodicity of the structure and on the refractive index contrast, a specific wavelength range is propagated along the fiber axis. In this work, we developed all-polymeric photonic bandgap Bragg fibers based on polystyrene (PS)/polymethyl methacrylate (PMMA) alternating layers. We describe a novel and efficient method for the preparation of the fibers preforms, and we present the fibers drawing process and the transmission properties of the resulting Bragg fibers.
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