Wavelength division multiplex communication link for optical transmission
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United States of America Patent
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Nov 30, 1999
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N/A
app pub date -
Jun 20, 1997
filing date -
Jun 21, 1996
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Abstract
The invention provides a wavelength division multiplex communication link for optical transmissions, which is able to provide a ultra high bit-rate wavelength division multiplex communication at a 1550 nm wavelength band using the existing 1300 nm band zero dispersion of a single mode fiber network. A dispersion compensating fiber DCF having a negative dispersion value at a 1550 nm wavelength band is connected to a single mode fiber SMF of the existing 1300 nm band zero dispersion of a single mode fiber network with a line length which compensates the dispersion slope of the single mode fiber to zero. And, a dispersion flat fiber which makes the dispersion slope zero is further connected, with a line length which makes the remaining dispersion value zero, to the terminal end of a connection link of the single mode fiber SMF and dispersion compensating fiber DCF, whereby both the dispersion slope of a single mode fiber and dispersion value thereof can be adjusted to be zero at the terminal end of the dispersion flat fiber DFF.
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