Reduction of linear birefringence in circular-cored...

Optical waveguides – Polarization without modulation

Reexamination Certificate

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C385S121000

Reexamination Certificate

active

07120323

ABSTRACT:
A method is described for reducing the effect of linear birefringence in an optical fiber, in particular a circular-cored single-mode fiber. The invention may also be directed to an optical fiber having a reduced linear birefringence. A length of the optical fiber may be subdivided into a plurality of sections and a twist having a predetermined sense of rotation and a twist angle may be introduced between the sections. Fibers of this type may find applications, for example, in fiber-optic current and magnetic field sensors.

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