High-quality Phase-Shifted Bragg grating sensor inscribed with only one laser pulse in a polymer optical fiber

C. A.F. Marques, A. Pospori, L. Pereira, S. Marques, P. Antunes, O. Bang, D. J. Webb, P. André

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present the first phase-shifted polymer optical fiber Bragg grating sensor inscribed with only one KrF laser pulse. The phase shift defect was created directly during the grating inscription process by placing a very narrow blocking aperture, in the center of the UV beam. One laser pulse with a duration of 15 ns and energy 6.3 mJ is adequate to introduce a refractive index change of 0.69×10-4 in the fiber core. The high-quality produced Bragg grating structure rejects 16.3 dB transmitted power, thus providing 97.6% reflectivity, which is well suited for photonic applications. The transmission notch depth is about 10 dB and very sharp notches of 3 dB width ranging from 14 pm is reported. The temperature, strain, and pressure response of the sensor has been characterized showing promising results in applications that require high-precision measurements. The ability to inscribe these high-quality sensors effectively can significantly reduce their production cost in industry.

Original languageEnglish
Title of host publicationSBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017
PublisherIEEE
Pages1-4
Number of pages4
Volume2017-January
ISBN (Electronic)9781509062416
DOIs
Publication statusE-pub ahead of print - 1 Dec 2017
Event17th SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017 - A�guas de Lindoia, Brazil
Duration: 27 Aug 201730 Aug 2017

Conference

Conference17th SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017
CountryBrazil
CityA�guas de Lindoia
Period27/08/1730/08/17

Bibliographical note

© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Funding: Fundação para a Ciência e Tecnologia (FCT)/MEC through national funds and co-funded by FEDER – PT2020 partnership agreement under the project UID/EEA/50008/2013. C.A.F. FCT through the fellowship SFRH/BPD/109458/2015. TMarie Curie Actions of the European Union's 7th Framework Programme FP7/2007-2013/ under REA grant agreement No.
608382.

Keywords

  • Annealing
  • Fiber Bragg Gratings
  • Optical Sensors
  • Phase-Shift
  • Polymer Fibers

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  • Cite this

    Marques, C. A. F., Pospori, A., Pereira, L., Marques, S., Antunes, P., Bang, O., Webb, D. J., & André, P. (2017). High-quality Phase-Shifted Bragg grating sensor inscribed with only one laser pulse in a polymer optical fiber. In SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2017 (Vol. 2017-January, pp. 1-4). IEEE. https://doi.org/10.1109/IMOC.2017.8121046