Abstract
A double-clad thulium-doped silica fibre laser, pumped by two beam-shaped diode-bars operating at 787-790nm, has yielded 14W of single-mode output at similar to2mum, with a slope efficiency with respect to launched power of 46%. Using a tunable laser configuration, comprising an external cavity with a diffraction grating, a maximum output power of 10.5W at 1921nm has been obtained, and wavelength tuning at multi-watt power levels over 215nm from 1855 to 2070nm has been demonstrated. The prospects for further improvement in performance will be discussed. In addition, a simple approach for further scaling of power levels from fibre lasers in the two-micron regime, based on intracavity wavelength combining of multiple fibre lasers is described. In a preliminary demonstration, four cladding-pumped thulium-doped silica fibre lasers are wavelength-combined yielding an output power >14W. The prospects for further increase in output power via this approach will be discussed.
| Original language | English |
|---|---|
| Title of host publication | XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers |
| Editors | Krzysztof M. Abramski, Edward F. Plinski, Wieslaw Wolinski |
| Place of Publication | Bellingham |
| Publisher | SPIE-International Society for Optical Engineering |
| Pages | 482-489 |
| Number of pages | 8 |
| ISBN (Print) | 0819449806 |
| DOIs | |
| Publication status | Published - 2003 |
| Event | XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers - Wroclaw, Poland Duration: 25 Aug 2002 → 30 Aug 2002 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Publisher | SPIE |
| Volume | 5120 |
Conference
| Conference | XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers |
|---|---|
| Country/Territory | Poland |
| City | Wroclaw |
| Period | 25/08/02 → 30/08/02 |
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Dive into the research topics of 'High power two-micron fibre lasers'. Together they form a unique fingerprint.Research output
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High power two-micron fibre lasers
Clarkson, W. A., Abdolvand, A., Shen, D. Y., Hayward, R. A., Cooper, L. J., Williams, R. B. & Nilsson, J., 2002.Research output: Contribution to conference › Paper
Activities
- 1 Participation in conference
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XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Abdolvand, A. (Participant)
25 Aug 2002 → 30 Aug 2002Activity: Participating in or organising an event types › Participation in conference
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