Optical fiber cladding with low polarization-dependent coupling
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United States of America Patent
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Jul 26, 2005
Grant Date -
Oct 10, 2002
app pub date -
Jan 22, 2002
filing date -
Jun 16, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a method of making optical fiber having low polarization dependence. Light propagating through a cladding thereof has a mode group having a first eigenmode propagating at a first speed and a second eigenmode propagating at a second speed. Manufacture of the fiber is controlled so that a difference between the first and second speeds is small. A difference between the speeds divided by the first speed is preferably less than 5×10-;7.
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