ALL-OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) DEMULTIPLEXER
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United States of America Patent
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Jul 7, 2016
app pub date -
Sep 2, 2014
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Sep 6, 2013
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Abstract
The invention relates to an all-optical demultiplexer for an optical orthogonal frequency division multiplexing (OFDM) signal having a centre wavelength. The OFDM signal comprises a plurality of subcarriers, each subcarrier having a symbol rate. The demultiplexer is adapted for spectrally magnifying the OFDM signal and comprises a first time lens, a second time lens, and a dispersive element. The dispersive element is arranged in a signal path between the first time lens and the second time lens to form a time lens telescope. The invention further relates to a method of demultiplexing OFDM signals.
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