title: Removing left-right asymmetry in a Sagnac interferometer applied to cancel its reflectance dependence on birefringence.
abstract: We present a left-right symmetry restoring method, which removes the detrimental birefringence in the single-mode fiber Sagnac interferometer, achieved with the aid of a half waveplate oriented at a specific angle. We show theoretically and demonstrate experimentally that adding a π-shift between clockwise and counterclockwise propagating, horizontally (in fiber loop plane) polarized field components, the Sagnac loop mirror's reflection becomes independent on birefringence of an element placed in the loop.
authors: School of Advanced Technology, Algonquin College, Ottawa, Ontario, Canada. golubi@algonquincollege.com
authors: Ilya
authors: I
authors: Golub
authors: Hourieh
authors: H
authors: Exir