Method of making a twisted optical fiber with low polarization m

Details Method of making a twisted optical fiber with low polarization m Method of making a twisted optical fiber with low polarization m

1998-10-30

2000-11-14

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

385 11, 385128, 385104, G02B 617

Patent

active

061481319

ABSTRACT:
A method of manufacturing an optical fiber, whereby a fiber is drawn from a molten extremity of a preform and is subsequently subjected to a torque, thereby causing a portion of the fiber to be twisted about its longitudinal axis and to be endowed with a spin. The torque is applied by running the fiber between a pair of wheels which rotate in mutually opposite senses about two different rotational axes, each wheel having a peripheral curved surface, the wheels being thus arranged that the fiber runs substantially tangential to their curved surfaces and is pressed therebetween, the wheels being moved back and forth relative to one another in a direction substantially perpendicular to the fiber so as to cause the fiber to be rolled back and forth between their curved surfaces.

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C.G. Askins et al. "Technique for Controlling the Internal Rotation of Principal Axes in the Fabrication of Birefringent Fibers", IEEE Journal of Lightwave Technology, 6 (9): 1402-1405, Sep. 1998.

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