Kerr self-cleaning of pulsed beam in an ytterbium doped multimode fiber.
Opt Express
; 25(5): 4783-4792, 2017 Mar 06.
Article
em En
| MEDLINE
| ID: mdl-28380747
ABSTRACT
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.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2017
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Article