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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Webb, D. J.
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Topics
Publications (19/19 displayed)
- 2018Novel thermal annealing methodology for permanent tuning polymer optical fiber Bragg gratings to longer wavelengthscitations
- 2017Thermal and chemical treatment of polymer optical fiber Bragg grating sensors for enhanced mechanical sensitivitycitations
- 2017Polymer optical fiber Bragg grating inscription with a single UV laser pulsecitations
- 2017Polymer optical fiber Bragg grating inscription with a single UV laser pulse
- 2017Polymer optical fiber sensors in human life safety
- 2017Annealing and etching effects on strain and stress sensitivity of polymer optical fibre Bragg grating sensors
- 2017Time-dependent variation of POF Bragg grating reflectivity and wavelength submerged in different liquids
- 2017Portable polymer optical fibre cleaver
- 2016Passive and Portable Polymer Optical Fiber Cleavercitations
- 2016Fuel level sensor based on polymer optical fiber Bragg gratings for aircraft applicationscitations
- 2015Time-dependent variation of fiber Bragg grating reflectivity in PMMA-based polymer optical fiberscitations
- 2015Fiber-optic liquid level monitoring system using microstructured polymer fiber Bragg grating array sensors: performance analysiscitations
- 2014Increase of the photosensitivity of undoped poly(methylmethacrylate) under UV radiation at 325 nmcitations
- 2014Investigations on birefringence effects in polymer optical fiber Bragg gratingscitations
- 2014Photosensitivity mechanism of undoped poly(methyl methacrylate) under UV radiation at 325 nm and its spatial resolution limitcitations
- 2013Highly photosensitive polymethyl methacrylate microstructured polymer optical fiber with doped corecitations
- 2013Connectorization of fibre Bragg grating sensors recorded in microstructured polymer optical fibrecitations
- 2011Photonic crystal fiber Bragg grating based sensors-opportunities for applications in healthcare
- 2011Optical fibre Bragg grating recorded in TOPAS cyclic olefin copolymercitations
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article
Polymer optical fiber Bragg grating inscription with a single UV laser pulse
Abstract
We experimentally demonstrate the first polymer optical fiber Bragg grating inscribed with only one krypton fluoride laser pulse. The device has been recorded in a single-mode poly(methyl methacrylate) optical fiber, with a core doped with benzyl dimethyl ketal for photosensitivity enhancement. One laser pulse with a duration of 15 ns, which provide energy density of 974 mJ/cm2, is adequate to introduce a refractive index change of 0.74×10-4 in the fiber core. After the exposure, the reflectivity of the grating increases for a few minutes following a second order exponential saturation. The produced Bragg grating structure rejects 17.9 dB transmitted power, thus providing 98.4% reflectivity, which is well suited for sensing applications. In addition, we report the importance of the fiber thermal treatment before or after the inscription, showing its effects on the lifetime and quality of the grating structures. Optimizing the irradiation conditions and the material chemical composition, a higher refractive index change in the fiber core is feasible. This demonstration significantly improves the potential for commercial exploitation of the technology.