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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 32 — Nov. 10, 2007
  • pp: 7823–7828

Mode-matched phase diffractive optical element for detecting laser modes with spiral phases

Michael A. Golub, Liran Shimshi, Nir Davidson, and Asher A. Friesem  »View Author Affiliations

Applied Optics, Vol. 46, Issue 32, pp. 7823-7828 (2007)

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A new type of diffractive optical element for detecting and measuring the power distribution of transverse modes emanating from radially symmetric laser resonators is presented. It is based on a relatively simple straightforward design of a phase-only diffractive optical element that serves as a matched filter, which correlates between specific prerecorded transverse modes with a certain azimuthal mode order and those in the incident laser light. Computer simulations supported by experimental results demonstrate how such elements can accurately detect modes with spiral phases and provide quantitative results on the modal power distribution.

© 2007 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping

ToC Category:
Diffraction and Gratings

Original Manuscript: March 15, 2007
Revised Manuscript: July 8, 2007
Manuscript Accepted: September 21, 2007
Published: November 2, 2007

Michael A. Golub, Liran Shimshi, Nir Davidson, and Asher A. Friesem, "Mode-matched phase diffractive optical element for detecting laser modes with spiral phases," Appl. Opt. 46, 7823-7828 (2007)

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