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http://hdl.handle.net/10397/79630
| Title: | Ultra-fast polymer optical fibre Bragg grating inscription for medical devices | Authors: | Bonefacino, J Tam, HY Glen, TS Cheng, X Pun, CFJ Wang, J Lee, PH Tse, MLV Boles, ST |
Issue Date: | 2018 | Source: | Light : science & applications, 23 Mar. 2018, v. 7, 17161, p. 1-10 | Abstract: | We report the extraordinary result of rapid fibre Bragg grating inscription in doped polymer optical fibres based on polymethyl methacrylate in only 7 ms, which is two orders of magnitude faster than the inscription times previously reported. This was achieved using a new dopant material, diphenyl disulphide, which was found to enable a fast, positive refractive index change using a low ultraviolet dose. These changes were investigated and found to arise from photodissociation of the diphenyl disulphide molecule and subsequent molecular reorganization. We demonstrate that gratings inscribed in these fibres can exhibit at least a 15 times higher sensitivity than silica glass fibre, despite their quick inscription times. As a demonstration of the sensitivity, we selected a highly stringent situation, namely, the monitoring of a human heartbeat and respiratory functions. These findings could permit the inscription of fibre Bragg gratings during the fibre drawing process for mass production, allowing costeffective, single-use, in vivo sensors among other potential uses. | Keywords: | Bio-sensing Fibre Bragg grating Photosensitive dopant Polymer optical fibre |
Publisher: | Springer Nature | Journal: | Light : science & applications | EISSN: | 2047-7538 | DOI: | 10.1038/lsa.2017.161 | Rights: | This work is licensed under a Creative Commons Attribution 4.0International License. The images or other third party material in thisarticle are included in the article’s Creative Commons license, unless indicated otherwisein the credit line; if the material is not included under the Creative Commons license, userswill need to obtain permission from the license holder to reproduce the material. To view acopy of this license, visit http://creativecommons.org/licenses/by/4.0/ © The Author(s) 2018 The following publication Bonefacino, J., Tam, H. Y., Glen, T. S., Cheng, X., Pun, C. F. J., Wang, J., … & Boles, S. T. (2018). Ultra-fast polymer optical fibre Bragg grating inscription for medical devices. Light : Science & Applications, 7, 17161, 1-10 is available at https://dx.doi.org/10.1038/lsa.2017.161 |
| Appears in Collections: | Journal/Magazine Article |
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| Bonefacino_Ultra-fast_Polymer_Optical.pdf | 3.26 MB | Adobe PDF | View/Open |
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