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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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Mackenzie, Jacob I.
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2022Effect of laser repetition rate on the growth of Sc2O3 via pulsed laser depositioncitations
- 2022Sub-ps 1030 nm laser-induced damage threshold evaluation of pulsed-laser deposited sesquioxides and magnetron-sputtered metal oxide optical coatings
- 2018Yb-doped mixed sesquioxide thin films grown by pulsed laser depositioncitations
- 2017Tailoring the refractive index of films during pulsed laser deposition growth
- 2017Pulsed laser deposition of garnets at a growth rate of 20-microns per hour
- 2016Laser performance of Yb-doped-garnet thin films grown by pulsed laser deposition
- 2016PLD growth of complex waveguide structures for applications in thin-film lasers: a 25 year retrospective
- 2016Engineered crystal layers grown by pulsed laser deposition: making bespoke planar gain-media devices
- 2016Pulsed laser deposited crystalline optical waveguides for thin-film lasing devices
- 2015Pulsed laser-assisted fabrication of laser gain media
- 2015Towards fabrication of 10 W class planar waveguide lasers: analysis of crystalline sesquioxide layers fabricated via pulsed laser deposition
- 2014Pulsed laser deposition of thin films for optical and lasing waveguides (including tricks, tips and techniques to maximize the chances of growing what you actually want)
- 2013Doped sesquioxide growth by pulsed laser deposition for planar waveguide lasing applications
- 2012Investigation of Erbium-doped tellurite glasses for a planar waveguide power amplifier at 1.57 microns
- 2012Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidthcitations
- 2010Efficient in-band pumped Ho:LuLiF4 2µm lasercitations
- 2010Efficient fiber-laser pumped Ho:LuLiF4 lasercitations
- 2005High-power and ultra-efficient operation of a Tm3+-doped silica fiber laser
Places of action
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document
Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidth
Abstract
Tellurite glass compositions doped with erbium and erbium/ytterbium optimised to support extended gain bandwidth with significant amplification have been fabricated, and their thermal, optical absorption, excitation and luminescence properties investigated. Each rare-earth dopant concentration was set at 1x10<sup>20</sup>/cm<sup>3</sup>. Broad emission cross-section bandwidths up to 50nm FWHM were observed, with fluorescence lifetimes of ~3ms. Collinear pump probe measurements on ~4mm thick bulk samples revealed peak gains of up to 2.1dB/cm at a wavelength of 1535nm in the co-doped material, with an incident pump intensity of only I<sub>inc</sub>~8kW/cm<sup>2</sup> at a wavelength of 974nm. At equivalent absorbed pump powers between co-doped and single doped materials the relative gain was 1.25dB/cm (I<sub>inc</sub>~4kW/cm<sup>2</sup>) and 0.9dB/cm (I<sub>inc</sub>~8kW/cm<sup>2</sup>) respectively, demonstrating efficient energy transfer from the ytterbium to erbium ions. Excited state absorption at longer wavelengths was observed and characterised and its implication on realising sufficient gain in the wavelength band of interest is discussed.