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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
Highly photosensitive polymethyl methacrylate microstructured polymer optical fiber with doped core
Abstract
In this Letter, we report the fabrication of a highly photosensitive, microstructured polymer optical fiber using benzyl dimethyl ketal as a dopant, as well as the inscription of a fiber Bragg grating in the fiber. A refractive index change in the core of at least 3.2×10 −4 has been achieved, providing a grating with a strong transmission rejection of −23 dB with an inscription time of only 13 min. The fabrication method has a big advantage compared to doping step index fiber since it enables doping of the fiber without using extra dopants to compensate for the index reduction in the core introduced by the photosensitive agent.