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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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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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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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Shardlow, Peter
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 201947 W continuous-wave 1726 nm thulium fiber laser core-pumped by an erbium fiber lasercitations
- 2019Amplification of a radially polarized beam in a thermally-guiding fiber-rod amplifier
- 2019Thulium-doped Fibre Laser with 25 W Single-mode Output at 1726 nmcitations
- 2019High power 1726nm operation of a thulium fiber laser pumped in-band by an erbium-only fiber laser
- 2017Holmium doped fibre optimised for resonant cladding pumping
- 2015Cladding shaping of optical fibre preforms via CO2 laser machining
Places of action
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conferencepaper
Thulium-doped Fibre Laser with 25 W Single-mode Output at 1726 nm
Abstract
Strong C-H bond absorption [1], and moderate water absorption in the spectral region around ~1.7 μm make this wavelength band of interest for a range of applications, including polymer processing and laser surgery [2]. Despite being a growing area of interest, development of high-power laser sources in this region has been limited. Daniel et al [3], showed that high-power, continuous-wave generation between 1.66 - 1.75 μm could be achieved by in-band pumping thulium-doped fibre (TDF) at 1565 nm using an erbium/ytterbium co-doped (Er/Yb) fibre laser, displaying 12.6 W at 1726 nm. Yb is added as a co-dopant to Er-doped fibres (EDF) to increase pump absorption efficiency. However, parasitic lasing in the Yb emission band at 1 μm can limit efficiency and the onset of self-pulsing can cause catastrophic damage, limiting single-mode output power and operating lifetimes. Here we report the use of a cladding-pumped Er-only fibre laser (EDFL) to core pump a thulium-doped fibre laser (TDFL), efficiently generating >25 W of single-mode output at 1726 nm.