Fast and stable gratings inscription in POFs made of different materials with pulsed 248 nm KrF laser

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This paper presents fiber Bragg grating (FBG) inscription with a pulsed 248 nm UV KrF laser in polymer optical fibers (POFs) made of different polymers, namely polymethyl methacrylate (PMMA), cyclic-olefin polymer and co-polymer, and Polycarbonate. The inscribed gratings and the corresponding inscription parameters are compared with grating inscribed in POFs made of the aforementioned materials but with the hitherto most used laser for inscription, which is a continuous wave 325 nm UV HeCd laser. Results show a reduction of the inscription time of at least 16 times. The maximum time reduction is more than 130 times. In addition, a reflectivity and a bandwidth close to or higher than the ones with the 325 nm laser were obtained. The polymer optical fiber Bragg gratings (POFBGs) inscribed with the 248 nm laser setup present high stability with small variations in their central wavelength, bandwidth, and reflectivity after 40 days.

Original languageEnglish
JournalOptics Express
Volume26
Issue number2
Pages (from-to)2013-2022
ISSN1094-4087
DOIs
Publication statusPublished - 22 Jan 2018

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© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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