Reduction of linear birefringence in circular-cored single-mode fiber
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United States of America Patent
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Oct 10, 2006
Grant Date -
Mar 14, 2002
app pub date -
Aug 2, 2001
filing date -
Aug 2, 2000
priority date (Note) -
Expired
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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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