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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 11, Iss. 5 — May. 1, 1994
  • pp: 881–885

Upconversion laser emission from Yb3+-sensitized Tm3+ in BaY2F8

R. J. Thrash and L. F. Johnson  »View Author Affiliations


JOSA B, Vol. 11, Issue 5, pp. 881-885 (1994)
http://dx.doi.org/10.1364/JOSAB.11.000881


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Abstract

Room-temperature upconversion laser operation has been demonstrated at 456, 482, 512, 649, and 799 nm in the ytterbium-sensitized thulium system in BaY2F8. With 960-nm titanium–sapphire laser pumping, cw operation of the 649- and the 799-nm upconversion laser transitions is observed. We believe that this is the first observation of laser emission on the 799-nm transition from 1G4 and the 512-nm transition from 1D2 in a bulk-crystal sample. At reduced temperatures cw or quasi-cw laser operation is obtained on the 456-, the 482-, and the 512-nm transitions. Room-temperature diode-laser pumping has been demonstrated for the 456-, the 512-, and the 649-nm transitions.

© 1994 Optical Society of America

Citation
R. J. Thrash and L. F. Johnson, "Upconversion laser emission from Yb3+-sensitized Tm3+ in BaY2F8," J. Opt. Soc. Am. B 11, 881-885 (1994)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-11-5-881

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