Dispersion-shifted fiber
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United States of America Patent
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Feb 24, 1998
Grant Date -
N/A
app pub date -
Jan 15, 1997
filing date -
Jan 16, 1996
priority date (Note) -
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Abstract
The present invention relates to a dispersion-shifted fiber having a structure for effectively lowering polarization-mode dispersion. This dispersion-shifted fiber is a single-mode optical fiber mainly composed of silica glass and has a zero-dispersion wavelength set within the range of at least 1.4 .mu.m but not longer than 1.7 .mu.m. In particular, at least the whole core region of the dispersion-shifted fiber contains fluorine.
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