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Proceedings Article

Q-switched diode-pumped Nd:YAG rod laser with output power of 420W at 532nm and 160W at 355nm

[+] Author Affiliations
David R. Dudley, Oliver Mehl, Gary Y. Wang, Ezra S. Allee, Henry Y. Pang, Norman Hodgson

Coherent, Inc. (USA)

Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71930Z (February 27, 2009); doi:10.1117/12.808345
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From Conference Volume 7193

  • Solid State Lasers XVIII: Technology and Devices
  • W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori
  • San Jose, CA | January 24, 2009

abstract

Intra-cavity harmonic generation in diode-pumped Q-switched Nd:YAG rod lasers is a preferred architecture to generate high output power at 532nm and 355nm in multimode operation. We have developed a side-pumped, dual rod Nd:YAG laser with intra-cavity second harmonic generation using Type II LBO in a double-pass configuration. A maximum 532nm output power of 420 W was achieved at 10 kHz with an M^2 of about 24. The pulse duration was 70 ns with a pulse energy stability of less than 0.7% rms. By incorporating a novel birefringence compensation technique and adding a Type II LBO sum frequency generator, we attained 160W of 355nm output at a repetition rate of 8 kHz with an M^2 of 18 and a pulse duration of 45 ns.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

David R. Dudley ; Oliver Mehl ; Gary Y. Wang ; Ezra S. Allee ; Henry Y. Pang, et al.
"Q-switched diode-pumped Nd:YAG rod laser with output power of 420W at 532nm and 160W at 355nm", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71930Z (February 27, 2009); doi:10.1117/12.808345; http://dx.doi.org/10.1117/12.808345


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