METHOD OF INCREASING FLUORESCENCE INTENSITY OF OXIDE GLASS

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The present invention provides a method performing a glass split phase technique to make an oxide glass with a strong structure phase and a weak structure phase. The strong structure phase has a three-dimensional continuous web-like distribution, and the weak structure phase has a continuous web-like distribution or an independent drop-like distribution. The weak structure phase receives rare earth elements therein more than the strong structure phase. Therefore, the rare earth elements are concentrated in the weak structure phase to increase the fluorescence intensity of the oxide glass by an increase of a concentration and a fluorescence efficiency of the rare earth elements.