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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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Poletti, Francesco
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Microlens Hollow-Core Fiber Probes for Operando Raman Spectroscopy.
- 2024Double-clad antiresonant hollow-core fiber and its comparison with other fibers for multiphoton micro-endoscopycitations
- 2024Double-clad antiresonant hollow-core fiber and its comparison with other fibers for multiphoton micro-endoscopycitations
- 2024Roadmap on optical communicationscitations
- 2024End-capping hollow-core fibers with suppressed coupling into higher-order modes
- 2023Non-destructive characterization of nested and double nested antiresonant nodeless fiber microstructure geometrycitations
- 2023Optical time domain reflectometry for hollow core optical fibres
- 2023Loss in hollow-core fibers: mechanisms, scaling rules, and limitscitations
- 2021Hollow-core-fiber delivery of broadband mid-infrared light for remote multi-species spectroscopy
- 2021Gas-induced differential refractive index enhanced guidance in hollow-core optical fiberscitations
- 2021Compact chirped-pulse amplification systems based on highly Tm3+ doped germanate fibercitations
- 2021Opportunities and challenges for long-distance transmission in hollow-core fibrescitations
- 2020Extruded tellurite antiresonant hollow core fiber for mid-IR operationcitations
- 2019Flexible Mid-IR fiber bundle for thermal imaging of inaccessible areas ; Flexibilní svazek vláken pro tepelné zobrazování nepřístupných oblastí ve střední infračervené oblasticitations
- 2019Flexible mid-IR fiber bundle for thermal imaging of inaccessible areascitations
- 2019Highly efficient Tm3+ doped germanate large mode area single mode fiber lasercitations
- 2019Tellurite antiresonant hollow core microstructured fiber for mid-IR power deliverycitations
- 2019Highly efficient Tm 3+ doped germanate large mode area single mode fiber lasercitations
- 20183D-printed polymer antiresonant waveguides for short-reach terahertz applicationscitations
- 2018Development of Mid-IR fiber bundle for thermal imaging
- 2017Nd-doped phosphate glass cane laser: From materials fabrication to power scaling testscitations
- 2016Nd ^3+ Doped Phosphate Glass Waveguides for Pulsed Laser Applications
- 2015MicroStructure Element Method (MSEM): viscous flow model for the virtual draw of microstructured optical fiberscitations
- 2015Accurate modelling of fabricated hollow-core photonic bandgap fiberscitations
- 2015Anti-resonant hexagram hollow core fiberscitations
- 2014X-ray tomography for structural analysis of microstructured and multimaterial optical fibers and preformscitations
- 2014Fabrication of multiple parallel suspended-core optical fibers by sheet-stackingcitations
- 2010Dispersion controlled highly nonlinear fibers for all optical processing at telecoms wavelengthscitations
- 2010Near-zero dispersion, highly nonlinear lead-silicate W-type fiber for applications at 1.55µmcitations
- 2009Dispersion-shifted all-solid high index-contrast microstructured optical fiber for nonlinear applications at 1.55µmcitations
- 2009Four-wave mixing-based wavelength conversion in a short-length of a solid 1D microstructured fibre
- 2007RGB generation by four-wave mixing in small-core holey fibers
- 2007Mid-IR supercontinuum generation from non-silica microstructured optical fiberscitations
- 2006Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 µm - 5 µmcitations
Places of action
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article
Highly efficient Tm3+ doped germanate large mode area single mode fiber laser
Abstract
We report the fabrication of a low numerical aperture large mode area, high<br/>concentration thulium doped germanate glass fiber using a rod-in tube technique. The fiber core is 20 μm in diameter and operates in the single-mode regime in the 2 μm region. The Tm<sup>3+</sup> ion concentration is 3×10<sup>20</sup>/cm<sup>3</sup> and the background fiber attenuation is 1.1 dB/m in the near infrared. We also demonstrate a high-power, high-efficiency fiber laser emitting at 1950 nm using a short (21-cm-long) length of the fiber. A slope efficiency of 55.9% with respect to absorbed pump power and a maximum output power of 1.52W was achieved. This represents both the highest slope efficiency and the highest output power reported so far for Tm<sup>3+</sup> doped germanate single mode fiber using in-band core pumping. The large core area, short device length and high efficiency make this fiber attractive for the development of high peak power pulsed fiber amplifiers and single-frequency fiber lasers operating in the 2 µm region.