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US 5,851,259 AGranted
Method for making Ge-Doped optical fibers having reduced brillouin scattering
AssigneeLucent Technologies Inc.
InventorsJane Bilecky Clayton, Lars Erik Eskildsen, Per Bang Hansen, Clifford Headley, William Alfred Reed
Life of this patent
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Abstract
In accordance with the invention, a Ge-doped optical fiber having reduced Brillouin scattering loss is made by modulating the tension applied to the fiber during draw. The draw tension is modulated between a low range 10-50 g and a high in the range 150-250 g. The result is SBS suppression with no significant change to end-to-end fiber loss or dispersion factors.
Claims5
A method for making Ge-doped optical fiber having reduced Brillouin scattering loss comprising the steps of:
- providing a glass optical fiber preform having a Ge-doped core;
- heating a region of said preform to permit drawing a fiber therefrom;
- drawing a fiber from said preform with a draw tension modulated with length, said draw tension modulated between a low of 10-50 g and a high of 150-250 g.
Dependencies are inferred from the claim text.