Scientific Results

Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber

Year: 2017

Authors: Guenard R., Krupa K., Dupiol R., Fabert M., Bendahmane A., Kermene V., Desfarges-Berthelemot A., Auguste J.L., Tonello A., Barthélémy A., Millot G., Wabnitz S., Couderc V.

Autors Affiliation: Université de Limoges, XLIM, UMR CNRS 7252, 123 Avenue A. Thomas, Limoges, 87060, France; Université de Bourgogne Franche-Comté, ICB, UMR CNRS 6303, 9 Av. A. Savary, Dijon, 21078, France; Dipartimento di Ingegneria dell’Informazione, Università di Brescia, INO-CNR, via Branze 38, Brescia, 25123, Italy; Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russian Federation

Abstract: We study a coupled cavity laser configuration where a passively Q-switched Nd:YAG microchip laser is combined with an extended cavity, including a doped multimode fiber. For appropriate coupling levels with the extended cavity, we observed that beam self-cleaning was induced in the multimode fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output. In the regime of beam self-cleaning, laser pulse duration was reduced from 525 to 225 ps. We also observed a Q-switched mode-locked operation, where spatial self-cleaning was accompanied by far-detuned nonlinear frequency conversion in the active multimode fiber.

Journal/Review: OPTICS EXPRESS

Volume: 25 (19)      Pages from: 22219  to: 22227

More Information: Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, PRIN 2015KEZNYM. Ministry of Education and Science of the Russian Federation, Minobrnauka, Y26.31.0017. Conseil Régional du Limousin, C409 SPARC. Horizon 2020, 691051. Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR. – Horiba Medical and BPI-France in the frame of the Dat@diag project (Industrial Strategic Innovation Program); Région Limousin (C409 SPARC); Italian Ministry of University and Research (MIUR) (Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) (PRIN 2015KEZNYM); Ministry of Education and Science of the Russian Federation (Minobrnauka) (14.Y26.31.0017); European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 691051.
KeyWords: Cleaning; Fibers; Multimode fibers; Q switching, Coupled cavity; Coupled-cavity lasers; Laser pulse duration; Nd:YAG microchip lasers; Non-linear beams; Nonlinear frequency conversion; Passively Q-switched; Single-mode lasers, Neodymium lasers
DOI: 10.1364/OE.25.022219

Citations: 28
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-24
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here

This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more