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High energy band gap hosts doped with lanthanide ions are suitable for optical devices applications. To study the potential of Ta 2 O 5 as a host compound, pure and Eu 2 O 3 -doped Ta 2 O 5 crystal fibers were grown by the laser-heated pedestal growth technique in diameters ranging from 250 to 2600μm and in lengths of up to 50mm. The axial temperature...
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