Work

Spatial Beam Self-Cleaning in Tapered Yb-Doped GRIN Multimode Fiber With Decelerating Nonlinearity

Year: 2020

Type: article

Abstract: We experimentally demonstrate spatial beam self-cleaning in an Yb-doped graded-index multimode fiber taper, both in passive and active configurations. The input laser beam at 1064 nm was injected for propagation from the small to the large core side of the taper, with laser diode pumping in a counterdirectional configuration. The Kerr effect permits to obtain high-beam quality amplification with no accompanying frequency conversions. As a result, our nonlinear taper amplifier may provide an important building block for multimode fiber lasers and amplifiers.

Source: IEEE photonics journal

DOI: 10.1109/jphot.2020.2979938

Authors: Alioune Niang, Daniele Modotto, Alessandro Tonello, Fabio Mangini, Umberto Minoni, Mario Zitelli, Marc Fabert, Mesay Addisu Jima, O. N. Egorova, Andrey E. Levchenko, Sergei L. Semjonov, Denis S. Lipatov, Sergey Babin, Vincent Couderc, Stefan Wabnitz

Institutions: University of Brescia, Centre National de la Recherche Scientifique, XLIM, Université de Limoges, Sapienza University of Rome, Prokhorov General Physics Institute, Russian Academy of Sciences, Fiber Optics Research Center, Institute of Chemistry of High-Purity Substances them. G.G.Devyatyh, Novosibirsk State University

Language: English

Topic: Photonic Crystal and Fiber Optics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,220

Funders: European Commission, Agence Nationale de la Recherche, H2020 European Research Council

Awards: G1864783830, G3455407915, G3645878137, G434337789, G4656594441, Spatiotemporal multimode complex optical systems, G8371890388, elecTRo-optically Actuated all-FIber Components for advanced endoscopic system

OpenAlex ID: W3012431366

FWCI: 1.805

Cites: 32

Cited by: 31

Related to: 10