Performance enhancement of sub-nanosecond diode-pumped passively Q-switched Yb:YAG microchip laser with diamond surface cooling

W. Z. Zhuang*, Yi Fan Chen, Kuan-Wei Su, Kai-Feng Huang, Yung-Fu Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

We experimentally confirm that diamond surface cooling can significantly enhance the output performance of a sub-nanosecond diodeend-pumped passively Q-switched Yb:YAG laser. It is found that the pulse energy obtained with diamond cooling is approximately 1.5 times greater than that obtained without diamond cooling, where a Cr4+:YAG absorber with the initial transmission of 84% is employed. Furthermore, the standard deviation of the pulse amplitude peak-To-peak fluctuation is found to be approximately 3 times lower than that measured without diamond cooling. Under a pump power of 3.9 W, the passively Q-switched Yb:YAG laser can generate a pulse train of 3.3 kHz repetition rate with a pulse energy of 287 μJ and with a pulse width of 650 ps.

Original languageEnglish
Pages (from-to)22602-22608
Number of pages7
JournalOptics Express
Volume20
Issue number20
DOIs
StatePublished - 24 Sep 2012

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