Emission at 1.3 microns from dysprosium-doped Ga:La:S glass
The potential for optical amplification at 1.3 µm is demonstrated in a dysprosium-doped gallium-lanthanum-sulphide based glass. Lifetimes of 59µs are observed for the <sup>6</sup>H<sub>9/2</sub> - <sup>6</sup>H<sub>15/2</sub> transition for which the e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
1994.
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| Subjects: | |
| Online Access: | Get fulltext |
| Summary: | The potential for optical amplification at 1.3 µm is demonstrated in a dysprosium-doped gallium-lanthanum-sulphide based glass. Lifetimes of 59µs are observed for the <sup>6</sup>H<sub>9/2</sub> - <sup>6</sup>H<sub>15/2</sub> transition for which the emission peaks at 1.32µm. A radiative lifetime of 203µs is calculated by a Judd-Ofelt analysis, indicating a total radiative quantum efficiency of 29%. A pump absorption cross-section 20 times greater than Pr<sup>3+</sup> suggests that shorter fibre devices may be possible. |
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