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A set partitioning type modulation utilising polarisation maintaining fibers was developed and tested for modulation frequencies between 1 and 7 GHz. In order to prove the feasibility of construction efficient data transmission link over PM fiber, a set of experiments was performed. Modulation and demodulation of the signal was performed in a circuit based on the standard and low cost components,...
In this paper, we have examined two schemes based on Coherent Optical-Orthogonal Division Multiplexing (CO-OFDM) systems suitable for long-haul transmission. Both take advantage of the Dual Polarization Quadrature Phase-Shift Keying (DPQPSK) constellation. However, the optical transmission is done by time dimension in Time Diversity (TD)-DPQPSK scheme and by the polarization dimension in Polarization...
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