Generation of sub-100 fs ultraviolet pulses from a Kerr-lens mode-locked Ce:LiCAF laser

Adam Sharp*, Ondrej Kitzler, Alex Fuerbach, David J. Spence, David W. Coutts

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We report the direct generation of mode-locked pulses as short as 91 fs from the broad-bandwidth gain medium of LiCaAlF6 (Ce:LiCAF) by combining Kerr-lens mode locking with synchronous pumping. The latter of these schemes, and the broad bandwidth of Ce:LiCAF, resulted in dispersion tuning of wavelength via cavity length in the spectral region of 290 nm; this mechanism facilitated a practical means of estimating intra-cavity dispersion, which was compensated for using a Brewster’s-cut prism pair. The pulse duration was measured via split-beam asynchronous cross-correlation using a Ti:sapphire reference laser and a known time reference. From the Ce:LiCAF laser cavity, output powers of 110 mW and a 9% slope efficiency were achieved.

Original languageEnglish
Pages (from-to)8316-8320
Number of pages5
JournalApplied Optics
Volume60
Issue number27
DOIs
Publication statusPublished - 20 Sep 2021

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