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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 3 — Feb. 1, 2009
  • pp: 292–294

Compact, diode-side-pumped Nd 3 + : YLi F 4 laser at 1053 nm with 45% efficiency and diffraction- limited quality by mode controlling

Niklaus Ursus Wetter, Eduardo Colombo Sousa, Izilda Marcia Ranieri, and Sonia Lícia Baldochi  »View Author Affiliations


Optics Letters, Vol. 34, Issue 3, pp. 292-294 (2009)
http://dx.doi.org/10.1364/OL.34.000292


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Abstract

We demonstrate what we believe to be the highest efficiency obtained to date in a transversely diode-pumped Nd 3 + : YLi F 4 slab laser operating at 1053 nm . The compact 11 - cm -long laser cavity configuration is based on total internal reflection of the intracavity beam at the pump facet of the gain crystal to improve the overlap with the pump radiation. Multimode operation with 9.5 W of output power and an efficiency of 45% is obtained for 21 W of pump power in a single-pass configuration. Using a second pass through the crystal and a new mode-controlling technique, the beam quality is improved to the diffraction limit with 6.9 W of output power and 33% of optical-to-optical efficiency.

© 2009 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 23, 2008
Manuscript Accepted: December 9, 2008
Published: January 26, 2009

Citation
Niklaus Ursus Wetter, Eduardo Colombo Sousa, Izilda Marcia Ranieri, and Sonia Lícia Baldochi, "Compact, diode-side-pumped Nd3+:YLiF4 laser at 1053 nm with 45% efficiency and diffraction- limited quality by mode controlling," Opt. Lett. 34, 292-294 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-3-292


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