Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system

Author

Bollig, Christoph ; Strauss, H.J. ; Esser, M.J.D. ; Koen, W. ; Schellhorn, M. ; Preussler, D. ; Nyangaza, K. ; Jacobs, C. ; Bernhardi, E.H. ; Botha, L.R.

Author_Institution

Nat. Laser Centre, Council for Sci. & Ind. Res., Pretoria, South Africa

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

In this paper, we demonstrate a Ho:YLF oscillator-amplifier system in a compact setup which efficiently utilises the unpolarised power from a fibre laser. The system produced more than 23 mJ energy per pulse at 1 kHz, while maintaining an M² of better than 1.1. After passing the laser output through the amplifier crystal, the slope efficiency of the system increased to 47%.

Keywords

holmium; laser beams; lithium compounds; optical pulse generation; optical pumping; solid lasers; yttrium compounds; LiYF₄:Ho; amplifier crystal; compact fibre-laser-pumped system; oscillator-amplifier system; pulse generation; slope efficiency; unpolarised laser power; Absorption; Crystals; Fiber lasers; Laser beams; Laser excitation; Optical fiber polarization; Oscillators; Power system modeling; Pulse amplifiers; Pump lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5196612

Filename

5196612