title: Brillouin gain variation due to a polarization-state change of the pump or Stokes fields in standard single-mode fibers.
abstract: The effect of pump or Stokes field polarization-state changes on Brillouin gain is investigated in standard (non-polarization- maintaining) single-mode fibers with a modal birefringence of ~10(-7). The Brillouin gain change due to polarization azimuth variation of the input pump or Stokes field reaches +/-31% of the average gain expected for a completely scrambled polarization state. This polarization effect on the Brillouin gain may lead to cross-talk fluctuation in bidirectional coherent transmission systems and to degradation of Brillouin amplifier performance.
authors.forename: T
authors.initials: T
authors.lastname: Horiguchi
authors.forename: M
authors.initials: M
authors.lastname: Tateda
authors.forename: N
authors.initials: N
authors.lastname: Shibata
authors.forename: Y
authors.initials: Y
authors.lastname: Azuma