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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 12992–12999

Linearly polarized single-mode Nd:YAG oscillators using [100]- and [110]-cut crystals

Henrik Tünnermann, Oliver Puncken, Peter Weßels, Maik Frede, Jörg Neumann, and Dietmar Kracht  »View Author Affiliations

Optics Express, Vol. 19, Issue 14, pp. 12992-12999 (2011)

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The output power and efficiency of linearly polarized high power Nd:YAG lasers is limited by depolarization and bifocusing. Both effects degrade the beam quality and decrease the output power. In a single pass configuration, [100]- and [110]-cut crystals can be used to reduce the depolarization. Here, we compare [100]-, [110]- and [111]-cut crystals in an oscillator configuration. As expected it was possible to reduce the depolarization loss by using [100]-cut crystals in our configuration, while the depolarization loss was higher for [110]-cut crystals. The thermal lens establishing in these crystals is not circular, which can degrade beam quality in high power operation.

© 2011 OSA

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 5, 2011
Revised Manuscript: June 10, 2011
Manuscript Accepted: June 10, 2011
Published: June 21, 2011

Henrik Tünnermann, Oliver Puncken, Peter Weßels, Maik Frede, Jörg Neumann, and Dietmar Kracht, "Linearly polarized single-mode Nd:YAG oscillators using [100]- and [110]-cut crystals," Opt. Express 19, 12992-12999 (2011)

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