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

W. Koen*, C. Bollig, H. Strauss, M. Schellhorn, C. Jacobs, Daniel Esser

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

79 Citations (Scopus)


We developed a compact Ho:YLF oscillator-amplifier system in a novel setup to utilise the unpolarised pump power from a fibre laser efficiently, and produced 21.3 mJ at 1 kHz, with an M (2) better than 1.1. The amplified energies agreed well with the predicted values from a two dimensional rotational symmetric amplifier model that we developed. The model considers upconversion losses and ground-state depletion, as well as the spatial distribution of the pump beam.

Original languageEnglish
Pages (from-to)101-106
Number of pages6
JournalApplied Physics B: Lasers and Optics
Issue number1-2
Publication statusPublished - Apr 2010


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