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

doi:10.1364/OE.20.022602

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 journal › Article › peer-review

16 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 language	English
Pages (from-to)	22602-22608
Number of pages	7
Journal	Optics Express
Volume	20
Issue number	20
DOIs	https://doi.org/10.1364/OE.20.022602
State	Published - 24 Sep 2012

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

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.",

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AU - Chen, Yi Fan

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AU - Huang, Kai-Feng

AU - Chen, Yung-Fu

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N2 - 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.

AB - 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.

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

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