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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 20 — Sep. 24, 2012
  • pp: 22602–22608

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

W. Z. Zhuang, Yi-Fan Chen, K. W. Su, K. F. Huang, and Y. F. Chen  »View Author Affiliations

Optics Express, Vol. 20, Issue 20, pp. 22602-22608 (2012)

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We experimentally confirm that diamond surface cooling can significantly enhance the output performance of a sub-nanosecond diode-end-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.

© 2012 OSA

OCIS Codes
(140.3320) Lasers and laser optics : Laser cooling
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 9, 2012
Manuscript Accepted: September 10, 2012
Published: September 18, 2012

W. Z. Zhuang, Yi-Fan Chen, K. W. Su, K. F. Huang, and Y. F. Chen, "Performance enhancement of sub-nanosecond diode-pumped passively Q-switched Yb:YAG microchip laser with diamond surface cooling," Opt. Express 20, 22602-22608 (2012)

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