Details

Autor(en) / Beteiligte

• Deliancourt, E
• Fabert, M
• Tonello, A
• Krupa, K
• Desfarges-Berthelemot, A
• Kermene, V
• Millot, G
• Barthélémy, A
• Wabnitz, S
• Couderc, V

Titel

Wavefront shaping for optimized many-mode Kerr beam self-cleaning in graded-index multimode fiber

Ist Teil von

• Optics express, 2019-06, Vol.27 (12), p.17311-17321

Ort / Verlag

United States: Optical Society of America - OSA Publishing

Erscheinungsjahr

2019

Quelle

Open access e-journals list

Beschreibungen/Notizen

• We report experimental results, showing that the Kerr beam self-cleaning of many low-order modes in a graded-index multimode fiber can be controlled thanks to optimized wavefront shaping of the coherent excitation beam. Adaptive profiling of the transverse input phase was utilized for channeling the launched power towards a specific low-order fiber mode, by exploiting nonlinear coupling among all guided modes. Experiments were carried out with 7 ps pulses at 1064 nm injected in a five meters long multimode fiber operating in the normal dispersion regime. Optimized Kerr beam self-cleaning of five different LP modes is reported, with a power threshold that increases with the mode order.