Dark fiber laser array coupler
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United States of America Patent
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Sep 25, 2007
Grant Date -
N/A
app pub date -
Jul 15, 2004
filing date -
Jul 15, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in the array. The in-phase oscillation of the lasers is facilitated by making one or more of the fibers interferometrically dark and having a different propagation constant than the other fibers. The other fibers, the interferometrically lit ones, are made to have fairly uniform intensity under the same collimated illumination.
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