Growth and upconversion properties of erbium doped $LiNbO_{3}$ single crystal fibers

  • Yang, Woo-Seok (School of Metallurgical and Materials Engineering, Sungkyunkwan University) ;
  • Suh, Su-Jeong (School of Metallurgical and Materials Engineering, Sungkyunkwan University) ;
  • Lee, Jong-Ho (Institute for Materials Research, Tohoku University) ;
  • Fukuda, Tsuguo (Institute for Materials Research, Tohoku University) ;
  • Yoon, Dae-Ho (School of Metallurgical and Materials Engineering, Sungkyunkwan University)
  • Published : 1999.08.01

Abstract

Erbium (Er) doped $LiNbO_{3}(Er:LiNbO_{3})$ single crystal fibers were grown free of creacks along the c-axis by micro-pulling down method. The $Er^{3+}$ concentration was distributed homogeneously along the growth axis. The samples for optical characterization were cut from as-grown single crystal fibers and polished. When the 980nm light was incident on the sample, upconversion phenomena were observed at the green range of wavelength 510~570nm. In addition, the intensity of upconversion was remarkably increased by increasing the concentration of $Er_{2}O_{3}$ dopant in as-grown $Er:LiNbO_{3}$ crystals.

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References

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