Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7907213 | Optical Materials | 2018 | 5 Pages |
Abstract
Er3+-doped fluoride glass modified by PbF2 is developed. Upon 980â¯nm laser-diode excitation, intense luminescence emission around 2.71â¯Î¼m from the Er3+4I11/2â¯ââ¯4I13/2 transition is observed. On the basis of the Judd-Ofelt theory, the intensity parameters and radiative properties are determined from the absorption and emission spectra. Compared with conventional Er3+-doped fluoride glass (Er:ZBLAN), the proposed glass possesses a large spontaneous emission probability (Arad, 29.76â¯sâ1) and a high stimulated emission cross-section (Ïem) at 2.71â¯Î¼m (1.25â¯Ãâ¯10â20â¯cm2). In addition, fibers with high strength might be drawn from the glass preform owing to its good chemical stability; therefore, it may be useful for increasing the output power of mid-infrared lasers. The results indicate that the present glass can be a good candidate for mid-infrared fiber lasers.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Tianfeng Xue, Chunlei Huang, Longfei Wang, Yu Li, Yinyao Liu, Dakun Wu, Meisong Liao, Lili Hu,