Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10633007 | Optical Materials | 2011 | 4 Pages |
Abstract
Broadband near-infrared emission has been investigated in a new type host composition of Er3+-Tm3+ codoped germanate glass. A broadband emission extend from 1350 to 1675Â nm with the full width at half maximum (FWHM) around 138Â nm is obtained in the germanate glass which codoped with 0.2 wt.% Er2O3 and 0.8 wt.% Tm2O3. The energy transfer between Er3+ and Tm3+ plays an important role in the emission mechanism, which is evidenced by the visible upconversion and the lifetime of Er3+:4I13/2 level effected by the addition of Tm2O3. And energy transfer efficiency from Er3+ to Tm3+ reaches 76% for the highest Tm3+ concentration of 0.8 wt.%. These results suggest that this glass would be a promising material for broadband light source and broadband amplifier for the wavelength division multiplexing transmission systems.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Rongrong Xu, Ying Tian, Meng Wang, Lili Hu, Junjie Zhang,