title: Highly efficient Yb-doped silica fibers prepared by powder sinter technology.
abstract: We report on the characteristics of an active fiber with core material made by sintering of Yb-doped silica powders as an alternative to a conventional modified chemical vapor deposition (MCVD) technique. This material provides the possibility to design very large and homogenously rare-earth doped active fiber cores. We have determined a fiber background attenuation of 20 dB/km and measured a slope efficiency of 80%. These values are comparable to established fibers made by MCVD technology.
authors.affiliation: Institute of Photonic Technology, Albert-Einstein-Strasse 9, 07745 Jena, Germany. martin.leich@ipht-jena.de
authors.forename: Martin
authors.initials: M
authors.lastname: Leich
authors.forename: Florian
authors.initials: F
authors.lastname: Just
authors.forename: Andreas
authors.initials: A
authors.lastname: Langner
authors.forename: Mario
authors.initials: M
authors.lastname: Such
authors.forename: Gerhard
authors.initials: G
authors.lastname: Schötz
authors.forename: Tina
authors.initials: T
authors.lastname: Eschrich
authors.forename: Stephan
authors.initials: S
authors.lastname: Grimm