| Autor: |
Thierry Robin, Tim Durrant, Hrvoje Gebavi, Olivier Le Goffic, Daniel Milanese, Stefano Taccheo, Achille Monteville, Benoit Cadier, David Mechin, Daniel Landais, Denis Tregoat |
| Rok vydání: |
2012 |
| Předmět: |
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| Popis: |
In this paper we report and summarize an extensive investigation of photodarkening in Yb-doped silica fibers. We made a set of similar fibers in order to cover a large Yb concentration range. The results show that once uniform inversion is reached all along the test fiber it is possible to show self-similarity of the time evolutions. The stretching parameter has a little influence. We can therefore provide two unique numbers to define photodarkening performance: the saturation loss and the time scale parameter. We also propose a possible figure of merit to compare different fibers. This may allow to evaluate the impact of photodarkening on laser/amplifier devices. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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