title: Coherent combining in an Yb-doped double-core fiber laser.
abstract: Coherent combining is demonstrated in a clad-pumped Yb-doped double-core fiber laser. A slope efficiency of more than 70% is achieved with 96% of the total output power in the fundamental mode of one of the two cores. This high combining efficiency is obtained when both cores are coupled via a biconical fused taper in a Michelson interferometer configuration.
authors.affiliation: Institut de Recherches en Communications Optiques et Microondes, 123 Avenue Albert Thomas, 87060 Limoges, France. boullet@ircom.unilim.fr
authors.forename: Johan
authors.initials: J
authors.lastname: Boullet
authors.forename: David
authors.initials: D
authors.lastname: Sabourdy
authors.forename: Agnès
authors.initials: A
authors.lastname: Desfarges-Berthelemot
authors.forename: Vincent
authors.initials: V
authors.lastname: Kermène
authors.forename: Dominique
authors.initials: D
authors.lastname: Pagnoux
authors.forename: Philippe
authors.initials: P
authors.lastname: Roy
authors.forename: Bernard
authors.initials: B
authors.lastname: Dussardier
authors.forename: Wilfried
authors.initials: W
authors.lastname: Blanc