Polarization based optical splitter/combiner
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United States of America Patent
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Mar 4, 2003
Grant Date -
N/A
app pub date -
Sep 15, 2000
filing date -
Sep 16, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A compact inline fiber optic polarization splitter/combiner for use in fiber optic communications. The splitter/combiner uses two birefringent wedges aligned with their optical axis at 90.degree. from each other and their bases disposed oppositely to each other. One lens is used at the input to couple light from the input fiber. A single output lens is used to couple light into two adjacent polarization maintaining fibers. When used as a combiner a beam of a first linear polarization state from one input fiber is combined with a beam of second linear polarization state from a second input fiber into a third output fiber carrying both beams. The splitter/combiner also provides for the ready alignment of the input and output beams further saving cost and complexity.
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