Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/1144
Title: Recent developments of Bragg gratings in PMMA and TOPAS polymer optical fibers
Authors: Webb, David J. 
Kalli, Kyriacos 
Carroll, Karen E. 
Zhang, Chi 
Komodromos, Michael
Argyros, Alexander 
Large, Maryanne C J 
Emiliyanov, Grigoriy
Bang, Ole 
Kjaer, Eric
Issue Date: 2007
Publisher: SPIE--The International Society for Optical Engineering
Source: Advanced Sensor Systems and Applications III. Vol. 6830, 683002 (2007)
Abstract: 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.
URI: http://ktisis.cut.ac.cy/handle/10488/1144
http://hdl.handle.net/10488/1144
DOI: 10.1117/12.761167
Rights: © 2007 SPIE--The International Society for Optical Engineering
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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