Initial alignment system for use in manufacturing an optical filter
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United States of America Patent
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Oct 23, 2001
Issued Date -
N/A
app pub date -
Apr 5, 1999
filing date -
Nov 12, 1997
priority date (Note) -
Expired
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Abstract
An alignment system finds the coordinates of a first point on a photosensitive optical fiber by scanning an ultraviolet beam across the fiber several times at successively decreasing speeds and detecting light returned from the fiber. The coordinates of a second point on the fiber are found similarly. On the basis of the coordinates of the first and second points, the alignment system automatically aligns the fiber in a direction suitable for the formation of an optical filter in the fiber.
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