We demonstrate that one can cancel the bending-induced linear birefringence in single-mode fibers by inducing a controlled anisotropy in a direction orthogonal to the bending plane. In particular, the controlled anisotropy can be generated by application of a lateral compressive stress on the fiber. 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.
© 2006 Optical Society of America
(260.1440) Physical optics : Birefringence
Original Manuscript: June 28, 2005
Revised Manuscript: October 20, 2005
Manuscript Accepted: November 2, 2005
César D. Perciante and José A. Ferrari, "Cancellation of bending-induced birefringence in single-mode fibers: application to Faraday sensors," Appl. Opt. 45, 1951-1956 (2006)