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Optics Letters

Optics Letters


  • Vol. 17, Iss. 11 — Jun. 1, 1992
  • pp: 816–818

Efficient resonantly pumped 2.8-μm Er3+:GSGG laser

R. C. Stoneman and L. Esterowitz  »View Author Affiliations

Optics Letters, Vol. 17, Issue 11, pp. 816-818 (1992)

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Efficient cw operation of the Er3+:GSGG 4I11/24I13/2 laser transition at 2.8 μm is demonstrated at room temperature. The 4I11/2 upper laser state is directly pumped at 0.97 μm. The slope efficiency for the 2.8-μm laser is 36%, indicating a greater than unity quantum efficiency. This excess efficiency results from the recycling of population through upconversion out of the lower laser state.

© 1992 Optical Society of America

Original Manuscript: February 11, 1992
Published: June 1, 1992

R. C. Stoneman and L. Esterowitz, "Efficient resonantly pumped 2.8-μm Er3+:GSGG laser," Opt. Lett. 17, 816-818 (1992)

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