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OFDM direct detection using a balanced receiver










Image Number 4 for United States Patent #8135279.

A receiver for demodulating optical OFDM signals may detect an optical OFDM signal that includes a carrier and data subcarriers by optically splitting the carrier from the subcarriers using a frequency selective filter and then recombining the carrier and the subcarriers using an optical coupler and balanced detector.








 
 
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