Wavelength multiplexer-demultiplexer corrected of geometric and chromatic aberrations
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United States of America Patent
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Apr 4, 1989
Grant Date -
N/A
app pub date -
Mar 20, 1986
filing date -
Mar 20, 1985
priority date (Note) -
Expired
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Abstract
Multiplexer-demultiplexer including: (a) a fiber-carrying element in which the entrance and exit fibers are embedded, with their ends in flush alignment in a plane surface of contact with the following element, (b) an element carrying the wavelength separation system, with a plane surface of contact with the fiber-carrying element and an opposite plane face of contact with the following element, (c) an intermediate element of the same index n as the element carrying the wavelength separation system, with a plane face of contact with the element carrying the wavelength separation system, and a spherical face of contact with the following element, (d) a mirror element with a spherical face of contact with the intermediate element and an opposite spherical face treated to form a concave spherical mirror towards the intermediate element.
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