Method for improving the coupling efficiency of elliptical light beams into optical waveguides
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United States of America Patent
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Dec 23, 1997
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N/A
app pub date -
Oct 12, 1995
filing date -
Oct 12, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical coupling system for improving the coupling efficiency of an elliptical light beam into optical fiber comprises a cylindrical concave microlens on the end facet of the optical fiber in conjunction with a pair of bulk optic asphere lenses. A method of producing a cylindrical concave microlens according to the invention consists of translating a fine wire across the end facet of an optical fiber so as to create a cylindrical grove.
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