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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 19, Iss. 10 — Oct. 1, 2002
  • pp: 2127–2133

Versatile generation of optical vortices based on paraxial mode expansion

Yutaka Yoshikawa and Hiroyuki Sasada  »View Author Affiliations


JOSA A, Vol. 19, Issue 10, pp. 2127-2133 (2002)
http://dx.doi.org/10.1364/JOSAA.19.002127


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Abstract

We demonstrate a simple and versatile method for generating various configurations of optical vortices from a Gaussian light beam by using glass plates and an astigmatic mode converter (AMC). The glass plates are inserted into the Gaussian beam to imprint nodal lines along the edges, and the AMC then transforms the beam with the nodes into a vortex beam. The procedures are discussed in terms of a transverse-mode expansion of the paraxial light beam, in which each Hermite–Gaussian mode is converted into the corresponding Laguerre–Gaussian mode by the AMC. We generated several vortex configurations, and the results show good agreement with the theoretical predictions.

© 2002 Optical Society of America

OCIS Codes
(260.0260) Physical optics : Physical optics

History
Original Manuscript: December 12, 2001
Revised Manuscript: April 9, 2002
Manuscript Accepted: May 2, 2002
Published: October 1, 2002

Citation
Yutaka Yoshikawa and Hiroyuki Sasada, "Versatile generation of optical vortices based on paraxial mode expansion," J. Opt. Soc. Am. A 19, 2127-2133 (2002)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-10-2127

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