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OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEX COMMUNICATION DEVICE, AND METHOD OF SUPPRESSING DESIRED SUBCARRIER OF OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SIGNAL
OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEX COMMUNICATION DEVICE, AND METHOD OF SUPPRESSING DESIRED SUBCARRIER OF OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SIGNAL
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机译:光学正交频分复用通信装置以及抑制光学正交频分复用信号的期望子载波的方法
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摘要
PROBLEM TO BE SOLVED: To provide an optical ad drop multiplexer device in optical orthogonal frequency multiplex division communication.;SOLUTION: The device includes: a branch means to branch a received optical signal into a first optical signal and a second optical signal; a light source means to generate local light; a reception means to subject the second optical signal to coherent reception by the local light, and thereafter output an electric signal by performing photoelectric conversion; a generation means to extract a desired subcarrier signal from the electric signal, and generate an erasure signal inverted in polarity with respect to the extracted subcarrier signal; an addition means to add the erasure signal and a subcarrier signal to be added in an optical orthogonal frequency division multiplex modulation communication device; a modulation means to modulate the local light with the output signal of the addition means; and a multiplexing means to multiplex the first optical signal and an optical signal output by the modulation means.;COPYRIGHT: (C)2011,JPO&INPIT
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