title: Measured phase and group birefringence in elliptical core fibers with systematically varied ellipticities.
abstract: This paper presents the first systematic phase and group birefringence measurements of elliptical core fibers covering an unprecedented ellipticity range from 0.1 to 0.9. Experimental results at 1550 nm are compared with simulations, and the birefringence ratio is shown to depend on both ellipticity and core area. Also the dispersion of the group birefringence is discussed.
authors.affiliation: OFS Fitel Denmark ApS, Priorparken 680, DK-2605 Brøndby, Denmark. tgeisler@ofsoptics.com
authors.forename: Tommy
authors.initials: T
authors.lastname: Geisler
authors.forename: Søren
authors.initials: S
authors.lastname: Herstrøm