Recent developments of Bragg gratings in PMMA and TOPAS polymer optical fibers


We report on the temperature response of FBGs recorded in pure PMMA and TOPAS holey fibers. The gratings are fabricated for operational use at near IR wavelengths, using a phase mask and a cw He-Cd laser operating at 325nm. The room temperature grating response is non-linear and characterized by quadratic behavior for temperatures from room temperature to the glass transition temperature, and this permanent change is affected by the thermal history of the gratings. We also report the first FBG inscription in microstructured polymer optical fibers fabricated from TOPAS. This material is fully polymerized and has very low moisture absorption, leading to very good fiber drawing properties. Furthermore, although TOPAS is chemically inert and bio-molecules do not readily bind to its surface, treatment with Antraquinon and subsequent UV activation allows sensing molecules to be deposited in well defined spatial locations. When combined with grating technology this provides considerable potential for label-free bio-sensing.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Aston University (General)
Additional Information: Copyright 2007 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Event Title: Advanced Sensor Systems and Applications III
Event Type: Other
Event Dates: 2007-11-12 - 2007-11-14
Uncontrolled Keywords: Electrical and Electronic Engineering,Condensed Matter Physics
ISBN: 9780819470058
Last Modified: 05 Jan 2024 08:27
Date Deposited: 28 Nov 2018 16:19
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.spi ... 1167.full?SSO=1 (Publisher URL)
PURE Output Type: Conference contribution
Published Date: 2007-12-01
Authors: Webb, David J. (ORCID Profile 0000-0002-5495-1296)
Kalli, Kyriacos
Carroll, Karen
Zhang, Chi
Komodromos, Michalis
Argyros, Alex
Large, Maryanne
Emiliyanov, Grigoriy
Bang, Ole
Kjaer, Eric



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