title: Effective Verdet constant in a terbium-doped-core phosphate fiber.
abstract: The concept of an effective Verdet constant is proposed and experimentally validated. The effective Verdet constant of light propagation in a fiber includes contributions from the materials in both the core and the cladding. It is measured in a 25 wt.% terbium-doped-core phosphate fiber to be -6.2+/-0.4 rad/(Tm) at 1,053 nm, which is six times larger than silica fiber. The result agrees well with Faraday rotation theory in optical fiber.
authors.affiliation: Laboratory for Laser Energetics, University of Rochester, 250 E. River Road, Rochester, New York 14623, USA.
authors.forename: L
authors.initials: L
authors.lastname: Sun
authors.forename: S
authors.initials: S
authors.lastname: Jiang
authors.forename: J D
authors.initials: JD
authors.lastname: Zuegel
authors.forename: J R
authors.initials: JR
authors.lastname: Marciante