High-power diode-pumped ytterbium-doped fibre-laser
High-power diode-pumped ytterbium-doped fibre-laser
This thesis details the work I have done on double cladding ytterbium-doped fibre lasers. The two main subjects developed were the study of an efficient compact-launching system, and the operation of the double cladding compact fibre as a continuous-wave laser and a Q-switched laser. During this work, highly efficient side launching systems were developed. These allowed coupling of more than 70% of the pump light into the doped fibre and gave as good lasing efficiency as end-pumping system. The pump and the signal were also well separated in two different guides at the ends of the device. Efficient lasing at 976 nm (85% slope efficiency) was demonstrated too, by using small inner cladding area and double passed pump. Finally, pulse-energy as high as 7.7 mJ was achieved with a large core cladding pumped ytterbium doped Q-switched fibre laser.
University of Southampton
Renaud, Cyril C.
ccb88119-de19-4d26-a505-31d5eb166ce0
2001
Renaud, Cyril C.
ccb88119-de19-4d26-a505-31d5eb166ce0
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Renaud, Cyril C.
(2001)
High-power diode-pumped ytterbium-doped fibre-laser.
University of Southampton, Optoelectronic Research Centre, Doctoral Thesis, 134pp.
Record type:
Thesis
(Doctoral)
Abstract
This thesis details the work I have done on double cladding ytterbium-doped fibre lasers. The two main subjects developed were the study of an efficient compact-launching system, and the operation of the double cladding compact fibre as a continuous-wave laser and a Q-switched laser. During this work, highly efficient side launching systems were developed. These allowed coupling of more than 70% of the pump light into the doped fibre and gave as good lasing efficiency as end-pumping system. The pump and the signal were also well separated in two different guides at the ends of the device. Efficient lasing at 976 nm (85% slope efficiency) was demonstrated too, by using small inner cladding area and double passed pump. Finally, pulse-energy as high as 7.7 mJ was achieved with a large core cladding pumped ytterbium doped Q-switched fibre laser.
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Renaud_2001_thesis_1520T.pdf
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Published date: 2001
Organisations:
University of Southampton
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Local EPrints ID: 38210
URI: http://eprints.soton.ac.uk/id/eprint/38210
PURE UUID: 1c8c5b81-e962-4118-b92c-f97c8c82ebb7
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Date deposited: 21 Jun 2006
Last modified: 16 Mar 2024 03:01
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Author:
Cyril C. Renaud
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