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Updated: May 15, 2026
Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
Published on: July 29, 2013
Planar Bragg grating in bulk polymethylmethacrylate
M Rosenberger1, G Koller, S Belle
1Laboratory for Photonic Technologies and Sensing, University of Applied Sciences Aschaffenburg, Aschaffenburg, Germany. manuel.rosenberger@h-ab.de
Abstract:
We report on a one-step writing process of a planar waveguide including a Bragg grating structure in bulk Polymethylmethacrylate (PMMA). A KrF excimer laser and a phase mask covered by an amplitude mask were used to locally increase the refractive index in PMMA and thereby generate simultaneously the planar waveguide and the Bragg grating. Our results show a reflected wavelength of the Bragg grating of about 1558.5 nm in accordance to the phase mask period. The reflectivity of the grating is about 80%. Initial characteristics of the Bragg grating structure towards humidity are investigated.
