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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 19, Iss. 2 — Jan. 15, 1994
  • pp: 108–110

Diffractive optical element for mode shaping of a Nd:YAG laser

James R. Leger, Diana Chen, and Zhong Wang  »View Author Affiliations


Optics Letters, Vol. 19, Issue 2, pp. 108-110 (1994)
http://dx.doi.org/10.1364/OL.19.000108


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Abstract

A diffractive laser cavity mirror is described that can customize the amplitude and phase of a laser mode. The design of this diffractive element is shown for a square, flat-topped fundamental mode. The laser cavity has a theoretical fundamental mode loss of only 0.08% and a second-order mode loss of 48.2%, resulting in high modal discrimination. The fabricated mirror is tested in a Nd:YAG laser system. The resulting square flat-topped mode has an rms variation of 1.5% over the two-dimensional flat-topped region and a large discrimination against higher-order modes.

© 1994 Optical Society of America

History
Original Manuscript: July 27, 1993
Published: January 15, 1994

Citation
James R. Leger, Diana Chen, and Zhong Wang, "Diffractive optical element for mode shaping of a Nd:YAG laser," Opt. Lett. 19, 108-110 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-2-108

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