Interplay of Kerr and Raman beam cleaning with a multimode microstructure fiber

Year: 2018

Authors: Dupiol R.; Krupa K.; Tonello A.; Fabert M.; Modotto D.; Wabnitz S.; Millot G.; Couderc, V.

Autors Affiliation: Université de Limoges, XLIM, UMR CNRS 7252, 123 Avenue A. Thomas, 87060 Limoges, France
Université Bourgogne-Franche-Comté, ICB UMR CNRS 6303, 9 Avenue A. Savary, 21078 Dijon, France
Dipartimento di Ingegneria dell’Informazione, Università di Brescia, via Branze 38, 25123 Brescia, Italy
Istituto Nazionale di Ottica del Consiglio Nazionale delle Ricerche (INO-CNR), via Branze 45, 25123 Brescia, Italy

Abstract: We experimentally study the competition between Kerr beam self-cleaning and Raman beam cleanup in a multimode air – silica microstructure optical fiber. Kerr beam self-cleaning of the pump is observed for a certain range of input powers only. Stokes Raman beam generation and cleanup lead to both depletion and degradation of beam quality for the pump. The interplay of modal four-wave mixing and Raman scattering in the infrared domain leads to the generation of a multimode supercontinuum ranging from 500 nm up to 1800 nm.

Journal/Review: OPTICS LETTERS

Volume: 43 (3)      Pages from: 587  to: 590

KeyWords: Air cleaners; Cleaning; Four wave mixing; Microstructure; Optical fibers; Silica, Beam cleanup; Beam generation; Infrared domains; Microstructure fibers; Microstructure optical fibers; Multimodes; Self cleaning; Super continuum; Multimode fibers
DOI: 10.1364/OL.43.000587

Citations: 23
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