OPTICAL FIBER RAMAN AMPLIFIER
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United States of America Patent
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Issued Date -
Nov 25, 2010
app pub date -
May 19, 2009
filing date -
May 19, 2009
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Abstract
The invention provides simultaneous suppression of PMD and PDG in a fiber Raman amplifier. One embodiment employs a two-section fiber with one section being unspun and the other, longer, section having a periodic spin profile. The other embodiment employs a single segment fiber having a periodic exponentially varying spin profile.
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