Polymer optical fiber Bragg grating inscription with a single Nd:YAG laser pulse

Luis Pereira, Rui Min, Xuehao Hu, Christophe Caucheteur, Ole Bang, Beatriz Ortega, Carlos Marques*, Paulo Antunes, João L. Pinto

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We experimentally demonstrate the first polymer optical fiber Bragg gratings inscribed with only one Nd:YAG laser (266 nm) pulse. The gratings have been inscribed in a single-mode poly (methyl methacrylate) optical fiber, with a core doped with benzyl dimethyl ketal for photosensitivity enhancement. One laser pulse with a duration of 8 ns and energy of 72 µJ is adequate to introduce a refractive index change of 0.5 × 10−4 in the fiber core. The stability of the gratings has been confirmed and the strain and temperature sensitivity measurements demonstrate their tunable properties.
Original languageEnglish
JournalOptics Express
Volume26
Issue number14
Pages (from-to)18096-18104
ISSN1094-4087
DOIs
Publication statusPublished - 2018

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