Doping silica beyond limits with laser plasma for active photonic materials
The limited solubility of rare-earths in silica hampers the development of loss-compensated photonic integrated circuits. We report a novel method using femtosecond laser plasma assisted hybrid material integration of rare-earth-doped tellurite with silica, achieving high doping concentration of Er...
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Published in | Optical materials express Vol. 5; no. 12; pp. 2849 - 2861 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
01.12.2015
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Subjects | |
Online Access | Get full text |
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Summary: | The limited solubility of rare-earths in silica hampers the development of loss-compensated photonic integrated circuits. We report a novel method using femtosecond laser plasma assisted hybrid material integration of rare-earth-doped tellurite with silica, achieving high doping concentration of Er super(3+) and Yb super(3+)-ions, 1.63 x 10 super(21) atoms.cm super(-3), without segregation validated by Er super(3+): super(4)I sub(13/2) lifetime of 9.1 ms. The sequential ablation of two individual rare-earth (Er super(3+)/Yb super(3+)) doped-tellurite glass targets produces an exceptional intermixing of Er super(3+) and Yb super(3+)-ions extending to the pristine silica with sharp interface. Formation of such homogeneous glass structure with Er super(3+)-Yb super(3+)-ion s in a matrix of silica is not possible to realise by conventional methods. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2159-3930 2159-3930 |
DOI: | 10.1364/OME.5.002849 |