Criterion for optimizing high-power acousto-optically Q-switched self-Raman yellow lasers with repetition rates up to 500 kHz

Yung-Fu Chen*, K. Y. Chen, Y. C. Liu, C. M. Chen, C. H. Tsou, H. C. Liang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The criterion for optimizing the high-power acousto-optically Q-switched self-Raman yellow laser is originally explored for the repetition rate within 100-500 kHz. The minimum allowed value for the gate-open time is experimentally verified to be determined by the pulse buildup time. By using the minimum allowed gate-open time, the highest conversion efficiency can be achieved to raise the output power by approximately 20% in comparison with the conventional results. At a repetition rate of 200 kHz, the maximum output power at 588 nm can be up to 8.8 W at an incident pump power of 26 W. Furthermore, a practical formula is developed to accurately calculate the threshold pump power as a function of the gate-open time for a given repetition rate. (C) 2020 Optical Society of America

Original languageEnglish
Pages (from-to)1922-1925
Number of pages4
JournalOptics Letters
Issue number7
StatePublished - 1 Apr 2020



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