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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 9 — Apr. 26, 2010
  • pp: 9622–9627

Influence of UV illumination on the cold temperature operation of a LiNbO3 Q-switched Nd:YAG laser

Brian Cole, Lew Goldberg, Vernon King, and Jeff Leach  »View Author Affiliations

Optics Express, Vol. 18, Issue 9, pp. 9622-9627 (2010)

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UV illumination of a lithium niobate Q-switch was demonstrated as an effective means to eliminate a loss in hold-off and associated prelasing that occurs under cold temperature operation of Q-switched lasers. This degradation occurs due to the pyroelectric effect, where an accumulation of charge on crystal faces results in a reduction in the Q-switch hold-off and a spatially variable loss of the Q-switch in its high-transmission state, both resulting in lowering of the maximum Q-switched pulse energy. With UV illumination, the resulting creation of photo-generated carriers was shown to be effective in eliminating both of these effects. A Q-switched Nd:YAG laser utilizing UV-illuminated LiNbO3 was shown to operate under cold temperatures without prelasing or spatially variable loss.

© 2010 OSA

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 20, 2010
Revised Manuscript: March 18, 2010
Manuscript Accepted: March 18, 2010
Published: April 23, 2010

Brian Cole, Lew Goldberg, Vernon King, and Jeff Leach, "Influence of UV illumination on the cold temperature operation of a LiNbO3 Q-switched Nd:YAG laser," Opt. Express 18, 9622-9627 (2010)

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