Powder technology and innovative fiber design enabling a new generation of high-power single-mode-fiber laser sources

Benoit, A.; Xlim, UMR CNRS 7252, University Of LIMOGES, 123 Avenue Albert Thomas, 87060 Limoges, France EOLITE Systems, Cité De La Photonique, F-33600 Pessac, France, F. Salin, Dauliat, R.; Xlim, UMR CNRS 7252, University Of LIMOGES, 123 Avenue Albert Thomas, 87060 Limoges, France, Roy, P.; Xlim, UMR CNRS 7252, University Of LIMOGES, 123 Avenue Albert Thomas, 87060 Limoges, France, Valette, S.; SPCTS UMR CNRS 7315, European Ceramic Center, 12 Rue Atlantis, 87068 Limoges, France, Gaponov, D.; Xlim, UMR CNRS 7252, University Of LIMOGES, 123 Avenue Albert Thomas, 87060 Limoges, France, Schuster, K.; IPHT, Institute Of Photonic Technology, Albert-Einstein-Str. 9, 07743 Jena, Germany, Jamier, R.; Xlim, UMR CNRS 7252, University Of LIMOGES, 123 Avenue Albert Thomas, 87060 Limoges, France & Grimm, S.; IPHT, Institute Of Photonic Technology, Albert-Einstein-Str. 9, 07743 Jena, Germany
By simultaneously providing ultra large mode effective area (ULMA) and close to diffraction limited laser beams, Yb-doped double-clad photonic crystal fibers have become key components for power scaling in fiber laser systems. Despite their advantages, such fibers suffer from some drawbacks among which tremendous fabrication complexity and arising costs, high bending losses and poor integrability. In this paper, we show how the REPUSIL technique, which is an alternate synthesis method to produce high-quality doped-silica, enables...