Method for the adaptive configuration of the transmission spectrum in WDM-PONs
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United States of America Patent
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Feb 16, 2016
Grant Date -
Jun 25, 2015
app pub date -
Jun 21, 2013
filing date -
Jun 22, 2012
priority date (Note) -
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Abstract
A method for adaptive configuration of a transmission signal in a coherent Wavelength-Division Multiplexing-Passive Optical Network (WDM-PON) having an optical line termination and a plurality of end nodes includes: (a) generating, by at least m lasers, the transmission signal; (b) monitoring the ka active end nodes; (c) if the number of active end nodes is reduced to ka≦(m−1)*p: reassigning active end nodes associated with a spectral range of a laser to be switched off to a respective free spectral range of another laser, announcing the new assignment of the spectral ranges by transmitting a message to one or more end nodes assigned to the laser to be switched off, and switching off the laser to be switched off; and (d) if the number of active end nodes increases to ka>m*p: switching on an additional laser.
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