title: Nonplanar fiber-optic sensing head for the compensation of bending-induced birefringence in Faraday current sensors.
abstract: We demonstrate the compensation of bending-induced linear birefringence in single-mode fibers coiled in a nonplanar path by alternating orthogonal bending planes. This effect can be applied for the construction of birefringence-free fiber coils in Faraday sensor heads (e.g., in current sensors) to improve their sensitivity. Validation experiments are presented.
authors.forename: César D
authors.initials: CD
authors.lastname: Perciante
authors.forename: Sofía
authors.initials: S
authors.lastname: Aparicio
authors.forename: Ricardo
authors.initials: R
authors.lastname: Illa
authors.forename: José A
authors.initials: JA
authors.lastname: Ferrari