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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 1 — Jan. 1, 2009
  • pp: 10–12

Generation of vortex array beams from a thin-slice solid-state laser with shaped wide-aperture laser-diode pumping

Kenju Otsuka and Shu-Chun Chu  »View Author Affiliations

Optics Letters, Vol. 34, Issue 1, pp. 10-12 (2009)

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We demonstrate vortex array-beam generations from a thin-slice, wide-aperture, solid-state laser with laser-diode end-pumping. Radial and rectangular vortex arrays were found to be formed in a controlled fashion with symmetric and asymmetric pump-beam profiles, respectively. Most of these vortices exhibited single-frequency oscillations arising from a spontaneous process of transverse mode locking of degenerate or nearly degenerate modes assisted by the laser nonlinearity. Single-frequency rectangular array beams consisting of a large number of vortices, e.g., closely packed 25, 36, or 46 vortex pixels, were generated, originating from Ince–Gaussian modes excited by the asymmetric pumping.

© 2008 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 3, 2008
Revised Manuscript: November 12, 2008
Manuscript Accepted: November 15, 2008
Published: December 19, 2008

Kenju Otsuka and Shu-Chun Chu, "Generation of vortex array beams from a thin-slice solid-state laser with shaped wide-aperture laser-diode pumping," Opt. Lett. 34, 10-12 (2009)

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