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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17384–17390

Experimental realization of a diffractive unstable resonator with Gaussian amplitude of the outcoupled beam using a VECSEL amplifier

Hans-Christoph Eckstein and Uwe Detlef Zeitner  »View Author Affiliations

Optics Express, Vol. 17, Issue 20, pp. 17384-17390 (2009)

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Unstable resonators show an intense discrimination of undesired higher order modes but a high beam quality cannot be obtained with conventional resonators composed of spherical mirrors. In the present paper we demonstrate the possibility to tailor the fundamental mode by inserting diffractive elements into the resonator to generate a desirable output beam profile even for unstable resonators. We show a concept to design such surface structured elements for customizing the amplitude shape of the outcoupled beam. Further we demonstrate the first experimental realization of an unstable diffractive resonator with a Gaussian shaped amplitude profile of the laser beam for a vertical external cavity surface emitting laser (VECSEL).

© 2009 OSA

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.3410) Lasers and laser optics : Laser resonators

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 29, 2009
Revised Manuscript: July 16, 2009
Manuscript Accepted: July 17, 2009
Published: September 15, 2009

Hans-Christoph Eckstein and Uwe Detlef Zeitner, "Experimental realization of a diffractive unstable resonator with Gaussian amplitude of the outcoupled beam using a VECSEL amplifier," Opt. Express 17, 17384-17390 (2009)

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