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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1989),
  • paper WF53

Upconversion processes in Er-activated solid state laser materials

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Abstract

In the past few years, the phenomenon of stepwise upconconversion in Er-activated materials has been of considerable interest to researchers in the solid state laser community. The Impetus of this interest is an efficient laser operating in the wavelength range of 3 µm. A number of researchers have examined the upconversion processes in Er in various materials.1–5 The importance of upconversion has also been demonstrated in actual lasers in quasi-cw operations.2,3,5

© 1989 Optical Society of America

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