title: Principal modes in fiber amplifiers.
abstract: The dynamics of the state of polarization in multimode fiber amplifiers is presented. The experimental results reveal that although the state of polarizations at the output can vary over a large range when changing the temperatures of the fiber amplifiers, the variations are significantly reduced when resorting to the principal states of polarization in single-mode fiber amplifiers and principal modes in multimode fiber amplifiers.
authors.affiliation: Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel. moti.fridman@weizmann.ac.il
authors.forename: Moti
authors.initials: M
authors.lastname: Fridman
authors.forename: Micha
authors.initials: M
authors.lastname: Nixon
authors.forename: Mark
authors.initials: M
authors.lastname: Dubinskii
authors.forename: Asher A
authors.initials: AA
authors.lastname: Friesem
authors.forename: Nir
authors.initials: N
authors.lastname: Davidson