Аннотация
We experimentally demonstrate that Kerr spatial self-cleaning of a pulsed beam can be obtained in an amplifying multimode optical fiber. An input peak power of 500 W only was sufficient to produce a quasi-single-mode emission from the double-clad ytterbium doped multimode fiber (YMMF) with non-parabolic refractive index profile. We compare the self-cleaning behavior observed in the same fiber with loss and with gain. Laser gain introduces new opportunities to achieve spatial self-cleaning of light in multimode fibers at a relatively low power threshold.
Язык оригинала | английский |
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Страницы (с-по) | 4783-4792 |
Число страниц | 10 |
Журнал | Optics Express |
Том | 25 |
Номер выпуска | 5 |
DOI | |
Состояние | Опубликовано - 6 мар 2017 |