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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 15 — Aug. 1, 2010
  • pp: 2660–2662

Efficient beam converter for the generation of high-power femtosecond vortices

Vladlen G. Shvedov, Cyril Hnatovsky, Wieslaw Krolikowski, and Andrei V. Rode  »View Author Affiliations


Optics Letters, Vol. 35, Issue 15, pp. 2660-2662 (2010)
http://dx.doi.org/10.1364/OL.35.002660


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Abstract

We describe an optical beam converter for an efficient transformation of Gaussian femtosecond laser beams to single- or double-charge vortex beams. The device achieves a conversion efficiency of 75% for single- and 50% for double-charge vortex beams and can operate with high-energy broad bandwidth pulses. We also show that the topological charge of a femtosecond vortex beam can be determined by analyzing its intensity distribution in the focal area of a cylindrical lens.

© 2010 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(320.7080) Ultrafast optics : Ultrafast devices
(320.7160) Ultrafast optics : Ultrafast technology
(080.4865) Geometric optics : Optical vortices
(260.6042) Physical optics : Singular optics

ToC Category:
Ultrafast Optics

History
Original Manuscript: March 12, 2010
Revised Manuscript: June 8, 2010
Manuscript Accepted: June 22, 2010
Published: July 30, 2010

Citation
Vladlen G. Shvedov, Cyril Hnatovsky, Wieslaw Krolikowski, and Andrei V. Rode, "Efficient beam converter for the generation of high-power femtosecond vortices," Opt. Lett. 35, 2660-2662 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-15-2660


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References

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