| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Senthil Murugan, Ganapathy
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2022Study of prediction intervals in machine learning assisted mid-infrared spectroscopy for the diagnosis of neonatal respiratory distress syndrome
- 2022Prediction of neonatal respiratory distress biomarker concentration by application of machine learning to mid-infrared spectracitations
- 2019Mid-IR thermo-optic on-chip spectrometer on a III-V semiconductor platform
- 2018Chalcogenide glass waveguides with paper-based fluidics for mid-infrared absorption spectroscopycitations
- 2017Optical quality ZnSe films and low loss waveguides on Si substrates for mid-infrared applicationscitations
- 2014High-contrast, GeTe4 waveguides for mid-infrared biomedical sensing applicationscitations
- 2012Chalcogenide microsphere fabricated from fiber tapers using contact with a high-temperature ceramic surfacecitations
- 2012High-Q bismuth silicate nonlinear glass microsphere resonatorscitations
- 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
- 2011Integrated Nd-doped borosilicate glass microsphere lasercitations
- 2011Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating
- 2011Lead silicate glass microsphere resonators with absorption-limited Qcitations
- 2010Multifarious transparent glass nanocrystal composites
- 2010Position-dependent coupling between a channel waveguide and a distorted microsphere resonatorcitations
- 2010Chalcogenide glass microsphere lasercitations
- 2010Transparent silicate glass-ceramics embedding Ni-doped nanocrystals
- 2009Chalcogenide glass microspheres and their applications
- 2009Optical nonlinearities of tellurite glasses with ultrawide Raman bands
- 2007Chalcogenide glass microspheres: their production characterization and potentialcitations
- 2006Control of coupling between waveguides and microsphere resonators
- 2005Raman spectroscopic studies of quaternary tellurite glasses containing Nb2O5 and Ta2O5
Places of action
| Organizations | Location | People |
|---|
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.