Beam delivery apparatus and method for interferometry using rotatable polarization chucks
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United States of America Patent
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Jul 15, 1997
Grant Date -
N/A
app pub date -
Feb 1, 1995
filing date -
Feb 1, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of providing a beam having precisely orthogonally polarized components includes generating a beam with substantially orthogonally polarized components, splitting the beam to separate the components to separate paths, projecting each component into a respective polarization preserving optical fiber (PPF) or polarizing fiber, recombining the components output from the fibers into a single beam, and transmitting the single beam to an interferometer. The PPFs are rotationally adjustable at their output ends to provide precise orthogonality in the resulting beam.
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