So, S. (2007) Power scaling of Tm:YLF-pumped Ho:YAG lasers. University of Southampton, Optoelectronic Research Centre, Doctoral Thesis, 147pp.
Abstract
Reported in this thesis are methodologies for power-scaling Ho:YAG lasers for both the continuous-wave (CW) and Q-switched regime. Advancement in Ho:YAG laser power is made possible through the improvements in output power of the Tm:YLF pump lasers. The slab geometry provides good thermal management characteristics which helps to overcome the limitations set by the thermally-induced stress fracture when scaling output power of Tm:YLF lasers. In conjunction with the use of novel holmium cavity designs that allow the use of slab pump lasers, high-power Ho:YAG lasers are realised. of 18.3 x 3.3. The slope efficiency was 61 % with respect to the thulium incident power, and the lasing wavelength was 2090 nm. Pulse energies as high as 14 mJ were achieved when Q-switched at 20 Hz, with a pulse duration of 17 ns. Further future improvements in output power and beam quality are also discussed.
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- Faculties (pre 2011 reorg) > Faculty of Engineering Science & Maths (pre 2011 reorg) > Optoelectronics Research Centre (pre 2011 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2011 reorg)
Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2011 reorg)
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