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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 4 — Feb. 1, 2009
  • pp: 770–777

Temporal wavefront stability of an ultrafast high-power laser beam

Juan M. Bueno, Brian Vohnsen, Luis Roso, and Pablo Artal  »View Author Affiliations


Applied Optics, Vol. 48, Issue 4, pp. 770-777 (2009)
http://dx.doi.org/10.1364/AO.48.000770


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Abstract

We measured the temporal dynamics of wavefront aberrations in a beam produced by a commercial ultrafast high-power laser with a research-prototype real-time Hartmann–Shack wavefront sensor. Measurements were performed at two different temporal rates for a 7 mm diameter. Results showed that changes in the wavefront aberrations were always lower than 1%. The main contribution to the total root-mean-square (RMS) wavefront error was due to the effects of low order aberrations (defocus and astigmatism), which persisted even after cavity realignment. The potential improvement in the beam quality after correction of the different aberration modes was also shown. Real-time measurements of laser aberrations while modifying cavity parameters might be a useful tool to improve the beam quality.

© 2009 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(140.0140) Lasers and laser optics : Lasers and laser optics
(220.1010) Optical design and fabrication : Aberrations (global)
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 5, 2008
Revised Manuscript: December 18, 2008
Manuscript Accepted: December 19, 2008
Published: January 26, 2009

Citation
Juan M. Bueno, Brian Vohnsen, Luis Roso, and Pablo Artal, "Temporal wavefront stability of an ultrafast high-power laser beam," Appl. Opt. 48, 770-777 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-4-770

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