Increase of the photosensitivity of undoped poly(methylmethacrylate) under UV radiation at 325 nm

D. Sáez Rodríguez*, K. Nielsen, O. Bang, D.J. Webb

*Corresponding author for this work

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

Abstract

In this paper we report, for the first time to our knowledge, an increase of the photosensitivity of a microstructured polymer optical fibre (mPOF) made of undoped PMMA due to applied strain during the fabrication of the gratings. In the work, fibre Bragg gratings (FBGs) have been fabricated in undoped PMMA mPOFs with a hexagonal structure of three rings in the inner cladding. Two sets of FBGs were inscribed at two different resonant wavelengths (827 nm and 1562 nm) at different strains using an UV He-Cd laser at 325 nm focused by a lens and scanned over the fibre. We observed an increase of the reflection of the fibre Bragg gratings when the fabrication strain is higher. The photosensitivity mechanism is discussed in the paper along with the chemical reactions that could underlie the mechanism. Furthermore, the resolution limit of the material was investigated. © 2014 Copyright SPIE.

Original languageEnglish
Title of host publicationMicro-structured and specialty optical fibres III
EditorsKyriacos Kalli, Alexis Mendez
Place of PublicationWashington (US)
PublisherSPIE
Number of pages6
ISBN (Print)978-1-62841076-1
DOIs
Publication statusPublished - 2014
EventMicro-structured and specialty optical fibres III - Brussels, Belgium
Duration: 14 Apr 201415 Apr 2014

Publication series

NameSPIE proceedings
PublisherSPIE
Volume9128
ISSN (Print)0277-786X

Conference

ConferenceMicro-structured and specialty optical fibres III
CountryBelgium
CityBrussels
Period14/04/1415/04/14

Bibliographical note

Sáez Rodríguez, D.; Nielsen, K.; Bang, O.; Webb, D.J., "Increase of the photosensitivity of undoped poly(methylmethacrylate) under UV radiation at 325 nm", Micro-structured and specialty optical fibres III., eds. Kyriacos Kalli; Alexis Mendez. 91280P, 2014.
Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
http://dx.doi.org/10.1117/12.2054297

Keywords

  • FBG
  • fibre bragg grating
  • photosensitivity
  • PMMA
  • polymer optical fibre

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  • Research Output

    • 3 Conference publication

    Factors influencing the temperature sensitivity of PMMA based optical fiber Bragg gratings

    Zhang, W. & Webb, D. J., 19 May 2014, Micro-structured and specialty optical fibres III. Kalli, K. & Mendez, A. (eds.). Bellingham, WA (US): SPIE, 7 p. 91280M. (SPIE proceedings; vol. 9128).

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

    Open Access
    File
  • Investigations on birefringence effects in polymer optical fiber Bragg gratings

    Hu, X., Sáez Rodríguez, D., Bang, O., Webb, D. J. & Caucheteur, C., 2014, Micro-structured and specialty optical fibres III. Kalli, K. & Mendez, A. (eds.). Bellingham, WA (US): SPIE, 6 p. 91280Q. (SPIE proceedings; vol. 9128).

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

    Open Access
    File
  • Polymer optical fiber grating as water activity sensor

    Zhang, W. & Webb, D. J., 19 May 2014, Micro-structured and specialty optical fibres III. Kalli, K. & Mendez, A. (eds.). Bellingham, WA (US): SPIE, 6 p. 91280F. (SPIE proceedings; vol. 9128).

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

    Open Access
    File
  • Cite this

    Sáez Rodríguez, D., Nielsen, K., Bang, O., & Webb, D. J. (2014). Increase of the photosensitivity of undoped poly(methylmethacrylate) under UV radiation at 325 nm. In K. Kalli, & A. Mendez (Eds.), Micro-structured and specialty optical fibres III [91280P] (SPIE proceedings; Vol. 9128). SPIE. https://doi.org/10.1117/12.2054297