Polarization drift eliminating fiber wrap design and method
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United States of America Patent
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Oct 19, 2010
Grant Date -
Apr 30, 2009
app pub date -
Oct 26, 2007
filing date -
Oct 26, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A fiber wrap and a method of rotating the fiber wrap without twisting a data cable are disclosed. The fiber wrap includes a sun gear, a sun cylinder coupled to the sun gear, a planetary gear in contact with the sun gear, a planetary cylinder coupled to the planetary gear, an outer housing in contact with the planetary gear, and a data cable coupled to the sun cylinder, the planetary cylinder, and the outer housing. The maximum bend radius of the data cable is determined by the equation:wherein λ is optical wavelength andis the bend radius at the start of the wrap motion, r is the radii of the sun cylinder and the planetary cylinder, and
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