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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 10 — May. 11, 2009
  • pp: 8461–8466

Laser performance of Yb3+ doped oxyorthosilicates LYSO and GYSO

Brian K. Brickeen and Eliot Geathers  »View Author Affiliations

Optics Express, Vol. 17, Issue 10, pp. 8461-8466 (2009)

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Ytterbium offers a number of advantages as the active ion in solid-state laser crystals, but is hindered by the disadvantages of a three level lasing scheme. Yb3+-doped oxyorthosilicates have emerged in recent years as potentially quasi-four level laser materials. Two such crystals, Yb:GdYSiO5 and Yb:LuYSiO5, are investigated to determine the extent of four-level behavior. It is shown that these crystals demonstrate a significant reduction in the pump intensity required to reach threshold, but still exhibit three-level effects in terms of self-absorption, population inversion, and thermal sensitivity. The important material properties such as the coefficient of thermal expansion and the thermo-optic coefficient are measured.

© 2009 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3380) Lasers and laser optics : Laser materials
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: February 20, 2009
Revised Manuscript: April 30, 2009
Manuscript Accepted: May 2, 2009
Published: May 5, 2009

Brian K. Brickeen and Eliot Geathers, "Laser performance of Yb3+ doped oxyorthosilicates LYSO and GYSO," Opt. Express 17, 8461-8466 (2009)

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