Method of making photonic band gap fibers
AssigneeCorning Incorporated
InventorsJames C. Fajardo, Thomas A. Cook, Michael T.. Gallagher
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Abstract
A method is provided for making a photonic band gap fiber including the steps of etching a preform and then drawing the preform into a photonic band gap fiber. Glass tubes are bundled and then formed into a photonic crystal perform having a number of passageways by reducing the cross-section of the bundle. One of the passageways is enlarged by flowing an etchant through it. After cleaning, the band gap fiber is made from the etched photonic preform, for example, by drawing.
Claims9
A method for making photonic band gap fibers comprising the steps of:
- making a photonic crystal preform having a plurality of longitudinal passageways;
- etching the photonic crystal preform;
- and
- making a photonic band gap fiber from said etched photonic crystal preform.
A method for making photonic band gap fibers comprising the steps of:
- assembling a plurality of glass tubes into a bundle having a cross-section;
- reducing the cross-section of said bundle, thereby forming a photonic crystal preform having a plurality of passageways;
- flowing an etching agent through at least one of said plurality of passageways;
- stopping the flow of said etching agent after a predetermined time period has elapsed;
- cleaning said photonic crystal preform to remove said liquid etching agent;
- and
- making a photonic band gap fiber from said etched photonic crystal preform.
A method for making photonic band gap fibers comprising the steps of:
- providing a photonic crystal preform having a plurality of longitudinal passageways;
- etching the photonic crystal preform;
- and
- making a photonic band gap fiber from said etched photonic crystal preform.
Dependencies are inferred from the claim text.