title: Properties of dysprosium-doped gallium lanthanum sulfide fiber amplifiers operating at 1.3 microm.
abstract: In light of recent progress in the fabrication of gallium lanthanum sulfide (GaLaS) fibers, we have modeled the performance of dysprosium-doped GaLaS fiber amplifiers operating at 1.3 microm . Based on experimental data, we find that the incorporation of a codopant (terbium) in the fiber core significantly shortens the optimum amplifier length from >30 m to approximately 3 m . Such a device may be practical, given the fiber losses currently achieved in GaLaS fibers.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.
authors.forename: B N
authors.initials: BN
authors.lastname: Samson
authors.forename: T
authors.initials: T
authors.lastname: Schweizer
authors.forename: D W
authors.initials: DW
authors.lastname: Hewak
authors.forename: R I
authors.initials: RI
authors.lastname: Laming