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https://hdl.handle.net/20.500.14279/28992| Title: | Gamma-radiation enhancement of sensing properties of FBGs in a few-mode polymer CYTOP fiber |
| Authors: | Chapalo, Ivan Chah, Karima Gusarov, Andreï I. Ioannou, Andreas Pospori, Andreas Nan, Ying-Gang Kalli, Kyriacos Mégret, Patrice |
| Major Field of Science: | Engineering and Technology |
| Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering |
| Keywords: | Temperature;Humidity;Polymer perfluorinated fiber Bragg gratings |
| Issue Date: | 1-Mar-2023 |
| Volume: | 48 |
| Issue: | 5 |
| Start page: | 1248 |
| End page: | 1251 |
| Journal: | Optics Letters |
| Abstract: | We investigate the effect of γ-radiation on temperature (T) and relative humidity (RH) sensitivities of polymer perfluorinated fiber Bragg gratings (FBGs). To this aim, different γ-radiation doses (80, 120, 160, and 520 kGy) were applied to a set of FBGs. We show that irradiated FBGs demonstrate an RH sensitivity rise with the received dose: from 13.3 pm/%RH for a pristine FBG up to 56.8 pm/%RH for a 520-kGy dose at 30℃. In contrast, T sensitivity decreases with radiation dose with a subsequent change of sign from positive to negative. Therefore, by experimental interpolation, T sensitivity can be eliminated at around a 160-kGy dose. This opens the possibility of designing an RH sensor with enhanced sensitivity, which at the same time is insensitive to T. |
| URI: | https://hdl.handle.net/20.500.14279/28992 |
| ISSN: | 15394794 |
| DOI: | 10.1364/OL.482936 |
| Rights: | © Optica Publishing Group |
| Type: | Article |
| Affiliation : | Cyprus University of Technology University of Mons SCK-CEN Belgian Nuclear Research Center |
| Publication Type: | Peer Reviewed |
| Appears in Collections: | Άρθρα/Articles |
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