Abstract
We report uniform Bragg grating growth in trans-4-stilbenemethanol (TS)-doped poly(methyl methacrylate) (PMMA) optical fibers. Fiber Bragg gratings (FBGs) were inscribed using a 400 nm femtosecond pulsed laser and a 1060-nm-period uniform phase mask. With a mean laser power of 20 mW, the grating reflectivity reaches 98 % in ~60 seconds. Then, with two mean laser powers (15 mW and 20 mW), reflectivity growth dynamics during the inscription process were demonstrated. After that, the stability of the inscribed gratings was investigated as a function of time, which was explained by the scheme of energy levels involved in the trans-cis photoisomerization process.
Original language | English |
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Title of host publication | 26th International Conference on Plastic Optical Fibres, POF 2017 - Proceedings |
Publisher | Instituto de Telecomunicacoes |
ISBN (Electronic) | 9789899734524 |
Publication status | Published - 1 Jan 2017 |
Event | 26th International Conference on Plastic Optical Fibres, POF 2017 - Proceedings - Aveiro, Portugal Duration: 13 Sept 2017 → 15 Sept 2017 |
Conference
Conference | 26th International Conference on Plastic Optical Fibres, POF 2017 - Proceedings |
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Country/Territory | Portugal |
City | Aveiro |
Period | 13/09/17 → 15/09/17 |
ASJC Scopus subject areas
- Polymers and Plastics
- Electronic, Optical and Magnetic Materials
- Materials Chemistry