Spatial beam cleaning in quadratic nonlinear medium

Year: 2018

Authors: Krupa K., Fona R., Tonello A., Labruyère A., Shalaby B.M., Wabnitz S., Baronio F., Aceves A.B., Millot G., Couderc V.

Autors Affiliation: Dipartimento di Ingegneria dell\’Informazione, Università di Brescia, Via Branze 38, Brescia, 25123, Italy; Universite´ de Limoges, XLIM, UMR CNRS 7252, 123 Av. A. Thomas, Limoges, 87060, France; Physics Department, Faculty of Science, Tanta University, Tanta, Egypt; Istituto Nazionale di Ottica del Consiglio Nazionale delle Ricerche (INO-CNR), Via Branze 45, Brescia, 25123, Italy; Department of Mathematics, Southern Methodist University, Dallas, TX 75275-0156, United States; Universite´ de Bourgogne Franche-Comte´, ICB, UMR CNRS 6303, 9 Av. A. Savary, Dijon, 21078, France

Abstract: We show experimentally that a laser beam scrambled by propagation in a short segment of multimode fiber may be cleaned by the nonlinear propagation in KTP cristal with type-II second-harmonic generation.

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KeyWords: Multimode fibers; Nonlinear optics, Nonlinear propagation; Quadratic nonlinear medium; Short segments; Spatial beams; Type II, Laser beams
DOI: 10.1364/NP.2018.NpTh1C.5