Method for Manufacturing LMA Optical Preforms and Fibers
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United States of America Patent
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Issued Date -
Sep 30, 2010
app pub date -
Mar 24, 2009
filing date -
Mar 24, 2009
priority date (Note) -
Abandoned
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Abstract
A method of producing a large mode area optical preform includes selecting a preexisting rod and at least one preexisting outer tube. The rod and tube are selected so that a difference between respective indices of refraction is uniform and lies within the desired range, and a ratio between respective rod and tube diameters is within the desired range after the rod is inserted into the tube and both are thermally treated. The predetermined ranges are selected to provide mass production of a large mode area fiber with the desired physical and geometrical characteristics.
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