TY - JOUR

T1 - Kerr self-cleaning of pulsed beam in an ytterbium doped multimode fiber

AU - Guenard, R.

AU - Krupa, K.

AU - Dupiol, R.

AU - Fabert, M.

AU - Bendahmane, A.

AU - Kermene, V.

AU - Desfarges-Berthelemot, A.

AU - Auguste, J. L.

AU - Tonello, A.

AU - Barthélémy, A.

AU - Millot, G.

AU - Wabnitz, S.

AU - Couderc, V.

PY - 2017/3/6

Y1 - 2017/3/6

N2 - 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.

AB - 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.

KW - INSTABILITY

KW - DYNAMICS

UR - http://www.scopus.com/inward/record.url?scp=85014557128&partnerID=8YFLogxK

U2 - 10.1364/OE.25.004783

DO - 10.1364/OE.25.004783

M3 - Article

C2 - 28380747

AN - SCOPUS:85014557128

VL - 25

SP - 4783

EP - 4792

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 5

ER -