双包层掺镱光纤的光谱性能与制备技术

双包层掺镱光纤作为光纤激光器的增益介质受到广泛关注。简要介绍了光纤中Yb＋的光谱性能，用于高功率光纤激光器的光纤结构设计以及双包层掺杂光纤的制备方法。讨论了掺镱光纤的光暗化效应的潜在机理及抑制方法。

The spectroscopic properties and fabrication technologies of ytterbium doped double cladding fibers

Ytterbium doped double cladding fibers as gain medium for fiber lasers have received much attention in recent years.The spectroscopic properties of Yb~(3+) ions in fibers and the novel structures for high power fiber lasers such as non-symmetrical double clads and large mode area core are briefly described.The development of suitable methods of fabricating silica-based performs doped with rare earth ions for optical fibers are presented.The underlying mechanisms responsible for photodarkening in ytterbium d...