Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/9336
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
Issue Date: 15-Sep-2016
Publisher: Institution of Engineering and Technology
Source: Electronics Letters, 2016, Volume 52, Issue 19, Pages 1626-1627
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.
URI: http://ktisis.cut.ac.cy/handle/10488/9336
ISSN: 00135194
Rights: © The Institution of Engineering and Technology 2016.
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