Kerr self-cleaning of pulsed beam in an ytterbium doped multimode fiber.

نویسندگان

  • R Guenard
  • K Krupa
  • R Dupiol
  • M Fabert
  • A Bendahmane
  • V Kermene
  • A Desfarges-Berthelemot
  • J L Auguste
  • A Tonello
  • A Barthélémy
  • G Millot
  • S Wabnitz
  • V Couderc
چکیده

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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عنوان ژورنال:
  • Optics express

دوره 25 5  شماره 

صفحات  -

تاریخ انتشار 2017