Experimental study of polarization-switched-QPSK subcarrier modulation and iterative demapping on optical OFDM systems

We demonstrate application of polarization-switched-QPSK subcarrier modulation together with soft-FEC LDPC coding and iterative demapping on OFDM lab system. 4.5dB OSNR-sensitivity improvement versus conventional polarization-multiplex is achieved.

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Bibliographic Details
Main Authors: Masalkina, E, Dischler, R, Bulow, H
Format: Conference Proceeding
Language:English
Subjects:
(060.2330) Fiber optics communications
(060.4080) Modulation
Bit error rate
Decoding
Modulation
OFDM
Optical fibers
Optical polarization
Parity check codes
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Description
Summary:We demonstrate application of polarization-switched-QPSK subcarrier modulation together with soft-FEC LDPC coding and iterative demapping on OFDM lab system. 4.5dB OSNR-sensitivity improvement versus conventional polarization-multiplex is achieved.