Enhanced luminescence in Er3+-doped SiO2-ZrO2 glass ceramic waveguide

Increased percent molar ratio of zirconia (ZrO<inf>2</inf>) in Er<sup>3+</sup>-doped SiO<inf>2</inf>-ZrO<inf>2</inf> glass-ceramic waveguide exhibits higher photoluminescence intensity. Zirconia helps to disperse Er<sup>3+</sup> ions homogeneously within the glass ceramic matrix and reduced the formation of ion clustering. This effect results in reduced the number of cluster and promotes intense and stable photoluminescence. SiO<inf>2</inf>-ZrO<inf>2</inf> planar waveguide thin films doped with 0.58mol% of Er<sup>3+</sup> were prepared via sol-gel technique.

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