Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
| Original language | English |
|---|---|
| Title | XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers |
| Subtitle | proceedings of SPIE 5120 |
| Editors | K.M. Abramski, E.F. Plinski, W. Wolinski |
| Place of publication | Bellingham |
| Publisher | SPIE-International Society for Optical Engineering |
| Publication date | 2003 |
| Pages | 482-489 |
| Number of pages | 8 |
| ISBN (Print) | 0-8194-4980-6 |
| DOIs | |
| State | Published |
| Name | SPIE proceedings |
|---|---|
| Volume | 5120 |
| Conference | 14th International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers |
|---|---|
| City | WROCLAW |
| Period | 25/08/02 → 30/08/02 |
| Other |
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.
Activity: Conference participation › Participation in conference