Abstract

Fabrication technology of the Yb^(3+):Er^(3+) co-doped glass samples is introduced. Photoluminescence (PL) characteristics of a single sample were experimentally investigated. The PL peak intensities of two samples in series were measured and discussed. The results show that the PL peak intensities of two samples in series depend on pump manners and arrangement of the samples. The better amplification ability can be obtained by two samples in series doped with low-concentration ytterbium instead of a single sample doped with high-concentration ytterbium.

© 2005 Chinese Optics Letters

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