Local order around Rare Earth elements in optic fibres.

Rare Earth elements (Er, Yb) are added to the composition of the core of optic fibers for their luminescent properties that permit the realization of 'in fibre' optical...将稀土元素（Rare Earth elements）铒（Er）、镱（Yb）掺入光纤纤芯的组分中，凭借其发光特性，可实现‘光纤内’光学……