Abstract
We demonstrate a digital optical communication system based on minimum shift keying (MSK) signal
transmission with coherent detection. 5-Gb/s MSK signal can transmit over a 160-km standard single mode fiber
(SSMF) without phase compensation. At the receiver, we use data-aided channel estimation and frequency domain
equalization (FDE) techniques in the digital signal processing (DSP) algorithm, then analyze its performance
characteristics compared with quadrature phase shift keying (QPSK) format. The simulation results show that
the MSK format will be a potential candidate for next-generation access network.
© 2014 Chinese Optics Letters
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