Polarization transformer
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United States of America Patent
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Mar 25, 2003
Grant Date -
N/A
app pub date -
Jun 22, 1999
filing date -
Feb 11, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for fabricating a transformer of linearly polarized light to elliptically polarized light is presented. The method involves twisting a birefringent fiber through angles that depend on the polarization desired. This technique obviates the need to splice fibers, as in common approaches. In the final step of the method, the polarization can be fine tuned by heating the fiber to cause the core of the fiber to diffuse into the cladding. Also, methods and systems are presented to transform substantially polarized light to substantially randomly polarized light.
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