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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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Holmes, Christopher
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023Flexible photonics in carbon and glass fiber reinforced polymers for new multifunctionality: exploring the advances, challenges, and opportunitiescitations
- 2023Flexible Photonics in Carbon and Glass Fiber Reinforced Polymers for New Multifunctionalitycitations
- 2023Flexible Photonics in Carbon and Glass Fiber Reinforced Polymers for New Multifunctionality:Exploring the Advances, Challenges, and Opportunitiescitations
- 2022Design of microstructured flat optical fiber for multiaxial strain monitoring in composite materialscitations
- 2022New generation of embedded planar optics for in-situ, through-thickness and real-time strain measurements in carbon fiber reinforced polymer composites during the cure processcitations
- 2021Design of polarization-maintaining FBGs using polyimide films to improve strain-temperature sensing in CFRP laminatescitations
- 2020Identifying mechanical vibration modes of a cantilever using spectrally multiplexed Bragg gratings and machine learning
- 2020Structural health monitoring of composite laminate for aerospace applications via embedded panda fiber Bragg gratingcitations
- 2020Real-time through-thickness and in-plane strain measurement in Carbon Fibre Reinforced Polymer composites using planar optical Bragg gratingcitations
- 2018Direct UV written integrated waveguides using 213nm light
- 2015Optically integrated fiber: a new platform for harsh environmental sensing
- 2015Planarised optical fiber composite using flame hydrolysis deposition demonstrating an integrated FBG anemometer
- 2014Planarised optical fiber composite using flame hydrolysis deposition demonstrating an integrated FBG anemometercitations
- 2013Low optical-loss facet preparation for silica-on-silicon photonics using the ductile dicing regimecitations
- 2013Polish-like facet preparation via dicing for silica integrated opticscitations
- 2013Facet machining of silica waveguides with nanoscale roughness without polishing or lapping
- 2010Micromachined multimode interference device in flat-fibercitations
- 2010Integrated optic glass microcantilevers with Bragg grating interrogationcitations
Places of action
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conferencepaper
Direct UV written integrated waveguides using 213nm light
Abstract
Direct UV writing is a technique capable of fabricating low-loss channel waveguides, couplers and Bragg gratings in planar silica devices by translating an appropriate substrate through a tightly focused UV beam. To date direct UV written waveguides have been primarily formed using 244nm laser light, relying on the photosensitivity provided by doping with germanium and boron. To induce sufficient refractive index change, necessary for wave guiding, the substrates also require hydrogenation prior to UV writing. Not only does this require additional processing but over time the hydrogen present within the silica out-diffuses, which can cause variation of the final written structures. Deep-UV light, with a wavelength of 213 nm, has previously been used to inscribe strong fibre Bragg gratings (FBGs) in hydrogen-free Ge-doped fibres. Here we present the use of a 213 nm UV laser to write planar waveguide devices without the need for hydrogen loading.<br/>Flame Hydrolysis Deposition (FHD) was used to deposit core and cladding layers of doped silica onto a thermally oxidised silicon wafer. Individual planar chips were diced from this wafer and a 5th harmonic Q-switched solid state laser operating at 213 nm wavelength was used to inscribe waveguides within the germanium-doped core layer of the chips without prior hydrogen loading.<br/>We shall present our latest results of direct deep-UV written waveguides, including; the characterisation of single mode waveguides, detailed fluence and loss measurements, induced refractive index change and the first demonstration of planar Bragg gratings and photonic structures written with 213nm light.