Method of providing a 1xN fiber optic coupler
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United States of America Patent
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-
May 21, 1991
Grant Date -
N/A
app pub date -
Jan 4, 1990
filing date -
Jan 4, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fiber optic coupler is formed by assembling a coupler preform having two concentric glass tubes having a gap between them. The shape and/or size of the inner tube relative to the shape and/or size of the outer tube is such that a plurality of output optical fibers can be equally spaced in the gap. An input optical fiber is disposed in an aperture in the inner tube. The input and output fibers extend through the midregion of the resultant coupler preform. The midregion is heated to collapse it about the fibers, and the central portion of the midregion is stretched to reduce the diameter over a predetermined length.
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