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Title: Femtosecond laser inscribed Bragg grating arrays in long lengths of polymer optical fibres; A route to practical sensing with POF
Authors: Lacraz, Amédéé 
Theodosiou, Antreas 
Kalli, Kyriacos 
Keywords: High-speed optical techniques;Bragg gratings;Fibre optic sensors;Optical polymers;Optical losses;Demodulators;Femtosecond laser;Inscribed Bragg grating arrays;Polymer optical fibres;Fibre Bragg gratings;Fibre length;Perfluorinated fibre;Direct write method;Optical loss;C-band;Telecommunication applications;Sensing devices;Multiplexed POF sensors;Bragg grating demodulator
Category: Nano-Technology
Field: Engineering and Technology
Issue Date: 15-Sep-2016
Publisher: Institution of Engineering and Technology
Source: Electronics Letters, 2016, Volume 52, Issue 19, Pages 1626-1627
metadata.dc.doi: 10.1049/el.2016.2238
Abstract: The first practical demonstration of readily useable fibre Bragg gratings in long lengths (>20 m) of polymer optical fibres (POFs) is reported; this is an increase in fibre length that exceeds two orders of magnitude for use in the C-band. A low loss perfluorinated fibre and a femtosecond- laser, direct-write method to inscribe gratings at two different wavelengths are used. Gratings are fabricated to operate at ∼800 nm, where the optical loss is minimal, and in the C-band, commonly used with traditional optical fibres for the majority of telecommunication applications. The development of POF Bragg gratings inscribed in long fibre lengths is the first important step for the integration of practical sensing devices and could promote the use of multiplexed POF sensors. The sensors were tested and characterised and demonstrate their compatibility with a commercial Bragg grating demodulator.
ISSN: 00135194
Rights: © The Institution of Engineering and Technology 2016.
Type: Article
Appears in Collections:Άρθρα/Articles

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