2.27-W Q-switched self-doubling Yb:YAB laser with controllable pulse length

Peter Dekker*, Judith M. Dawes, James A. Piper

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)
23 Downloads (Pure)


We report 95% conversion from the optimized Q-switched fundamental output to green output in the self-frequency doubling material Yb:YAB. Maximum average green powers of 2.27 W were obtained at 520-522 nm. The diode-to-green conversion efficiency was 26%. Operating at 10 kHz we obtained pulse widths ranging from 100 ns to 2 μs. The pulse duration was critically dependent on the strength of the nonlinear coupling and on the time that the acousto-optic Q switch was open. Numerical modeling of the system is found to predict the observed pulse-lengthening effect as well as high-average-power second-harmonic generation over a broad wavelength range.

Original languageEnglish
Pages (from-to)378-384
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Issue number2
Publication statusPublished - 2005


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