Polarization preserving optical fiber and method of manufacturin

Details Polarization preserving optical fiber and method of manufacturin Polarization preserving optical fiber and method of manufacturin

1989-01-23

1990-02-27

Lee, John D.

350 9629, G02B 622

Patent

active

049040529

ABSTRACT:
An improved polarization preserving birefringent fiber optic member is provided having cross-sectional circular cladding and core members of soft glasses. A metallic coating of an approximately circular configuration, that is offset from the axis of the core and cladding members, is provided with sufficient thickness to provide an anisotropic variation in compressional strain on the core member to create the anisotropy of the refracted index of the core member for preserving polarization characteristics. The optical fiber can be formed by heating a mechanical composite of a core rod and cladding tube, drawing the core and cladding to form a fused fiber and transporting the drawn fiber through a coating bath to provide the variation in thickness.

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