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Article Dans Une Revue Journal of the Optical Society of America B Année : 2018

Seeded intermodal four-wave mixing in a highly multimode fiber

Résumé

We experimentally and theoretically investigate the process of seeded intermodal four-wave mixing in a graded-index multimode fiber, pumped in the normal dispersion regime. By using a fiber with a 100-mu m core diameter, we generate a parametric sideband in the C-band (1530-1565 nm), hence allowing the use of an erbium-based laser to seed the mixing process. To limit nonlinear coupling between the pump and the seed to low-order fiber modes, the waist diameter of the pump beam is properly adjusted. We observe that the superimposed seed stimulates the generation of new spectral sidebands. A detailed characterization of the spectral and spatial properties of these sidebands shows good agreement with theoretical predictions from the phase-matching conditions. Interestingly, we demonstrate that both the second-and fourth-order dispersions must be included in the phase-matching conditions to get better agreement with experimental measurements. Furthermore, temporal measurements performed with a fast photodiode reveal the generation of multiple pulse structures

Dates et versions

hal-02300050 , version 1 (29-09-2019)

Identifiants

Citer

Abdelkrim Bendahmane, Katarzyna Krupa, Alessandro Tonello, Daniele Modotto, Thibaut Sylvestre, et al.. Seeded intermodal four-wave mixing in a highly multimode fiber. Journal of the Optical Society of America B, 2018, 35 (2), pp.295-301. ⟨10.1364/JOSAB.35.000295⟩. ⟨hal-02300050⟩
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