Fabrication of Bragg gratings in planar PMMA: impact of UV dosage and thermal annealing

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ID: 110277
2016
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Abstract
We report on the fabrication of planar Bragg gratings in polymer substrates and study the impact of the UV dosage and a subsequent thermal annealing on the reflectivity of the gratings and the full width at half maximum bandwidth of the reflected spectra. In addition, the influence of the grating length is investigated, showing that gratings as short as 4 mm continuously exhibit good reflection properties, facilitating miniaturized sensor designs. Moreover, we highlight that the polymer Bragg gratings exhibit a remarkable stable reflected spectrum for over two years. Finally, the experimentally determined spectral characteristics of the Bragg gratings are compared to simulated results revealing excellent agreement.
Reference Key
hellmann2016opticsfabrication Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Manuel Rosenberger,M. Girschikofsky,B. Schmauss,R. Hellmann;Manuel Rosenberger;M. Girschikofsky;B. Schmauss;R. Hellmann;
Journal Optics express
Year 2016
DOI
10.1364/OE.24.022563
URL
https://sciprofiles.com/publication/view/7a4045c3c2184e54032804434eb4dc7e
Keywords
thermal annealing polymer sensor fabrication bragg gratings uv dosage refractive index confocal laser scanning microscopy fiber bragg gratings optical sensing coupled mode theory plastic optical fibers

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