Method and apparatus for transmitting a signal using a chirp managed laser (CML) and an optical spectrum reshaper (OSR) before an optical receiver
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United States of America Patent
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Dec 29, 2009
Grant Date -
Jun 28, 2007
app pub date -
Jun 6, 2006
filing date -
Sep 2, 2004
priority date (Note) -
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Abstract
A method for transmitting a signal and a fiber optic system comprising: a frequency modulated source; an optical transmission fiber positioned to receive the output of the frequency modulated source; an optical filter positioned to receive the output of the optical transmission fiber; and an optical receiver positioned to receive the output of the optical filter; characterized in that: an optical spectrum reshaper is positioned between the frequency modulated source and the optical transmission fiber; and wherein the optical filter is a narrow band pass filter relative to the bit rate of the transmitted signal; and further wherein the frequency excursion of the frequency modulated source is between 20% and 120% of the bit rate frequency.
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