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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4261–4267

VCSEL end-pumped passively Q-switched Nd:YAG laser with adjustable pulse energy

Lew Goldberg, Chris McIntosh, and Brian Cole  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 4261-4267 (2011)

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A compact, passively Q-switched Nd:YAG laser utilizing a Cr4+:YAG saturable absorber, is end-pumped by the focused emission from an 804 nm vertical-cavity surface-emitting laser (VCSEL) array. By changing the VCSEL operating current, we demonstrated 2x adjustability in the laser output pulse energy, from 9 mJ to 18 mJ. This energy variation was attributed to changes in the angular distribution of VCSEL emission with drive current, resulting in a change in the pump intensity distribution generated by a pump-light-focusing lens.

© 2011 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 13, 2011
Revised Manuscript: February 11, 2011
Manuscript Accepted: February 11, 2011
Published: February 17, 2011

Lew Goldberg, Chris McIntosh, and Brian Cole, "VCSEL end-pumped passively Q-switched Nd:YAG laser with adjustable pulse energy," Opt. Express 19, 4261-4267 (2011)

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